I started with a salary of 20 million won as a non-major from a pure liberal arts background in my 30s.

And in just one year, the pass rate went from 1% -> 66%, and I achieved a salary of 60 million KRW in my second year ☑️

After mentoring over 160 people, I am finally revealing all the laws of a winning resume that I discovered.

• After 300 document rejections, at the edge of despair wondering 'Am I just not good enough?', I discovered the 'rules of a game you can't lose.' I have packed everything into this single book—from the 'Winning Resume' principles that allowed a non-major with nothing to choose the large corporations they wanted in just one year, to actual successful resume analyses and copy-and-paste templates.

• Through over 160 practical mentoring sessions over the past two years, I discovered one unfortunate commonality. Most people didn't actually lack things to write about; they just didn't know how to showcase them. This book contains a proven 'winning formula' based on all the data from the job-changing process, rather than vague theories.

  
  

• And we propose the next step beyond just passing. In an era where AI writes code for you, how can you, as a junior, achieve rapid, compressed growth and seize new opportunities? From leaping over a 10-year gap by standing on the shoulders of the giant called AI, to finally designing your own game as a 'developer who doesn't need a resume', I have poured all the answers I found through countless sleepless nights into this book.

Wait a second! I'll save you some time.

Please focus for just one minute before investing your precious time and money.

I will quickly let you know if this book can truly solve your problems.

✅ If you are this type of person, this book will be a cheat code.

• Those who have submitted dozens or hundreds of resumes but lost confidence after repeatedly failing at the document screening stage

• Developers with 1–3 years of experience who clearly work hard but feel their growth has stagnated and that their resumes feel too ordinary

• "Because I'm a non-major," "Because I'm too old," "Because my experience is too short" — those who feel like giving up.

• "I've learned Spring, JPA, and Docker, so why am I not getting hired?" Those who have built up their specs but aren't seeing results

• Those who want to go beyond simple employment and become an irreplaceable developer in the AI era

❌ This is not suitable for these people.

• Those whose main tech stack is something other than web back-end (The principles are universal, but the examples are focused on Java/Spring.)

• Those who are preparing for overseas employment or applying to global companies

  
  

• Those with 5 or more years of experience or those who already have their own firm resume philosophy (This book is optimized for entry-level to junior positions)

• Those who say "My way is right, I don't need advice" (This may conflict with the content of the book)

• Those who want the 'correct answer' to be spoon-fed to them without any effort

  
  

• This book is not just a list of information; it is a book that first shifts your "perspective" and helps you execute in a way that actually works.

💡 What this book does not cover

• How to prepare for algorithm coding tests (focus on your resume)

• How to learn technology stacks like React and AWS

• How to ace interviews, how to negotiate salary effectively

  
  

.

.

.

Have you scrolled all the way down here?

Nice to meet you.

I am Grit, someone who found the way by failing first and facing challenges head-on.

If you are looking at this screen right now, you are probably feeling something like this.

• "Could this... be the answer I've been looking for?"

• "Is what this person saying actually true?"

• "Can I change too?"

  
  

If you were drawn in by the introductory text,

You are likely going through a process similar to what I experienced before my career change, or

I believe you are someone who is just starting to prepare for a career as a developer.

This book is for those who have the question, "Can I do it too?"

• I am quite old...

• I'm a non-major...

• I have a career gap...

• They say your starting salary at your first job is important, but mine is so low...

There are surely those whose hearts are racing like explorers who have discovered a dusty secret manual in a corner of an old library. You might be feeling a mix of doubt and excitement, thinking, "Can I finally end this tedious routine?" or "I've finally found it.". Với một nửa là sự nghi ngờ, một nửa là sự phấn khích khi tự hỏi: "Liệu cuối cùng mình có thể chấm dứt chuỗi ngày lặp đi lặp lại chán ngắt này không?", "Cuối cùng mình cũng tìm thấy nó rồi".

If the two years of failure and success I experienced first, and the traces of those experiences, have resonated with you—if you have a hunch that you’ve discovered something only you noticed while others haven't—then you are right. That hunch is the 'invitation' I am sending to you..

Let me briefly introduce myself.

I use the nickname Grit.

I chose this name when I started mentoring on Inflearn a year ago. While it means 'perseverance' or 'grit,' it holds a more honest meaning for me.

Grind + It (Grind it, grind through reality)

I wanted to remember those moments when I ground down and broke through the wall of reality, even though I lacked the specs, age, and academic background.

Three years ago, I also pinned my hopes on someone else's story, just like you.

"If they could do it... I can do it too, right?"

And I actually did it.

📊 Let me show you my journey in numbers

• Started development in early 30s as a pure liberal arts non-major

  
  

• First salary in the 20 million won range → Reached the 50 million won range in just one year (100% increase)

• 2nd year, achieved an annual salary in the 60 million won range

• 300+ document rejections → 66% pass rate in the final 2 months (Accepted at 4 out of 6 top-tier domestic companies)

• Confirmed 85% resume pass rate as of the current date (based on top-tier domestic companies)

• 45 Inflearn 1:1 mentoring sessions completed, 5.0/5.0 rating

• Conducted mentoring for over 160 individuals, including those from other bootcamps

  
  

  
  

I will honestly disclose my career path and the resulting salary increase rates.

• Affiliate of a major Korean corporation (service company): Started in the 20 million won range (Month 0)

• Same company: Reached the 30 million won salary range (6 months in)

• Pangyo Major Corporation: Reached the 50 million won salary range (Year 1)

• Same company: Reached the 60 million won salary range (Year 2) 

I started my career as a developer at a relatively late age, but

I have unique experiences and my own job-seeking/career-change know-how accumulated based on them.

• The experience of applying to over 300 places and facing countless rejections

• The experience of countless hours spent contemplating how to grow faster than others

• The experience of being recognized at a company used as a stepping stone, spending high-density time, and achieving rapid growth

• The experience of countless hours spent contemplating how to effectively showcase my capabilities as much as I focus on growing them

• Above all, the experience of increasing the success rate from 1% to 66% in a short period without any unusual background while submitting resumes for a career move

During the last 2 months of my job change period, as I upgraded my resume by n levels

I was able to gain the confidence that 'my resume is a winning resume,' and

I was able to selectively apply only to the top-tier companies I truly wanted to join.

Don't get me wrong.

I am not a 'successful person,' but 'someone who failed first.'

There were far more things I didn't have.

❌ Diploma from a prestigious university's Computer Science department

❌ Experience completing a famous bootcamp (Graduate of an obscure government-funded academy)

❌ Exceptional coding test skills (average 50% solving rate)

❌ Similar age to others (early 30s at the time of first employment)

❌ Outstanding networking or background

Instead, I had something else.

✅ The 'winning formula' discovered after 300 rejections

✅ Persistence that never gives up until the end

✅ An engineer's mindset of verifying and improving with data

So, perhaps I know your situation better than anyone else.

"I'm too old..."

"I'm not a computer science major..."

"I have a career gap..."

Because I’ve used all of these excuses(?) myself.

And I also know that those aren't just excuses, but real barriers.

But at the same time, I also know this.

That there is definitely a way to overcome those barriers.

.

.

.

These are the words I heard most often while mentoring.

"Hearing that you also went through a time like this made me think for the first time, 'I can do this too.'"

"Other mentors only talk about things that feel so far away, but you understand my situation exactly."

"I didn't know a resume could be transformed like this. I finally feel confident."

I am not a 10-year senior.

I'm not a "successful mentor" with a flashy career, either.

Instead, I am someone who stood in the exact same spot as you three years ago, shared the same worries, and tasted the same despair.

I discovered a surprising fact while mentoring on Inflearn. Can you believe the following?

• ✓ Mentor Experience: A junior only 2-3 years ahead

  
  

  → No impressive resume, no famous career background

  
  → In comparison, the actual Inflearn mentoring pool: Numerous big-name developers from "Na-Ka-Ra-Ku-Bae" + Silicon Valley

• ✓ My mentoring price:

  The highest price among Inflearn resume mentoring (in the 170,000 KRW range)

  
  

  → Maintained the highest price for over a year

  
  

  → More expensive than any other mentoring

• ✓

  Fully booked an average of 2 weeks in advance

  
  

  → To date, maintained a 90%↑ completion rate every Saturday

  
  

  → Consistently maintaining fully booked status about 2 weeks in advance on average

• ✓ Perfect 5.0 rating + constant stream of success stories

  
  

  → Not a single low rating.

  
  

  → Continuously receiving news of passing from actual mentees + maintaining ongoing friendships

At some point, I suddenly became curious.

There are probably many other great mentoring programs out there, so I asked them directly: "Why does everyone come to me?"

Here are the answers I received.

1️⃣ "I came because a friend recommended it" (More than half)

"A friend said they received mentoring and it was so good..."

"After seeing a fellow bootcamp classmate's resume get transformed..."

Is there any stronger evidence than someone who spent 170,000 won of their own money and invested their time recommending it to an acquaintance, saying, "You should try this too"?

2️⃣ "It didn't end with just one session; they kept reviewing it for me"

"Other mentoring sessions ended after just one time, but the mentor reviewed my work more than 10 times."

In fact, I review resumes 10, 20, or even 30 times. I also help with interviews as much as you want. This is because the reason I started mentoring was not to brag about myself.

3️⃣ "You were in a similar situation as me, mentor"

"Mentor, you had the exact same concerns as I do now three years ago."

"For the first time, I felt like 'this person understands my situation.'"

It was the same three years ago, and even now, I continue to worry, experiment, fail, and take on new challenges. As a fellow junior. As a fellow beginner. I do not speak of things I do not believe in. I do not tell you to do things I haven't done myself. I don't talk about methods from 10 years ago, but about what works right now.

.

.

.

There is a real reason why I wrote this book.

I still often think about that day three years ago.

It was a day when all the courses at the government-funded academy had ended, and even the final project was complete. The entire day was scheduled for a lecture on "How to Write a Resume." While the instructor was explaining something on the screen, I just stared blankly at the white Word document in front of me.

Truly, I was in a state of 'absolute nothingness'. I didn't even know where, what, or how to start. Should I use Word? PPT? Or maybe Notion? That sense of helplessness was more overwhelming than I expected. After spending the entire morning just watching the cursor blink, I eventually fled back home in the afternoon with a throbbing headache. That day, I couldn't write a single line other than the three characters of my name.

Looking back now, it wasn't that the lecture was bad. It was just that I wasn't prepared to take it in at all back then.

I can't forget that feeling of helplessness.

So, the first thing I ask before starting a mentoring session is this: what is the biggest difficulty you face in the process of getting a job or changing careers?

And I started from that point and tried to see it through to the end. Just like it was my own business. I was simply trying to be that 'person by their side' that I had so desperately wanted three years ago. Thankfully, so many people have joined me.

The more I mentor, the more I realize that many people are still facing the same sense of helplessness I felt three years ago. What is truly unfortunate is that while most people have great potential, they are heading in the wrong direction, pouring their passion and time into the wrong things.

• Why do some resumes get accepted while others get rejected?

• Why do some people move ahead while others fall behind?

• Why do some people say this market is difficult, while others say it's worth a shot?

It is actually quite comforting to know that there is a reason for both success and failure. Because once you know that reason—the "rules of the game"—you can get on the right track without wasting time.

That is why I created this book.

• How can I deliver this "winning formula," which I have proven over the past two years with more than 160 people, to even more people?

• How can I reduce that time of feeling lost to 1/100th?

The result of those intense deliberations is this very book.

While creating resumes with 160 people,

Through talking, contemplating, and revising for over two hours every single time,

All the patterns discovered.

While revising resumes together 10, 20, or even 30 times,

"Ah, so this is how you change it to get accepted"

Every moment verified by data.

What I realized after 300 rejections

The painful truths about "why it didn't work."

And what I discovered as the acceptance rate rose from 1% to 66%

Clear formulas for "how to make it work."

I have packed all of this into a single volume of about 240 pages.

I didn't simply list information.

• I poured hundreds of hours into it to perfectly replicate the experience of 1:1 mentoring.

• I tried to include over 160 actual resumes' 'clinical data' while ensuring all personal information was protected.

• Beyond just a resume, I ultimately wanted to provide challenge and inspiration for a person's "real" career design.

We don't spoon-feed you the right answers by telling you, "Write it like this."

Instead, it diagnoses the root cause of why your resume isn't working and instills the very 'mindset' that turns your raw experiences into a masterpiece.

I will now pass on the 'rules of the game' that I discovered through countless sleepless nights, being the first to fail and the first to face the challenges.

Let's go together. There is a way.

I recommend this to the following people.

It would be great if you are one of these people

✓ Those who have submitted dozens or hundreds of resumes but have become more accustomed to rejection emails than acceptance, and are losing their confidence

✓ Those who feel anxious and uneasy because it seems like only they are stuck at the document screening stage while their peers are already going on interviews. vì dường như chỉ có mình mình bị kẹt lại ở vòng hồ sơ, trong khi bạn bè cùng học đã bắt đầu đi phỏng vấn hết rồi.

✓ Those who have clearly done something but feel stuck when trying to write it on a resume, wondering "So what did I actually learn?" and want to know how to package their experiences as 'achievements'

✓ Those who look at others' flashy project experiences and feel that their own projects seem too humble

✓ Those who want to give up before even starting because of labels like "I'm a non-major," "I'm too old," or "I have a career gap." vì những cái mác như "Tôi không đúng chuyên ngành", "Tôi đã lớn tuổi" hay "Tôi có khoảng trống trong sự nghiệp"

✓ Those who want to turn the experience of hiding or making excuses for their weaknesses on their resume into a 'powerful narrative' that no one can replicate

After reading to the end

(When you go beyond reading and actually take action)

✨ Immediately applicable changes

✓ You will experience an overwhelmingly increased acceptance rate.

→ Immediately applicable starting today with copy-and-paste templates and checklists

→ In actual mentoring sessions, more than 8 out of 10 people experience an immediate improvement in their pass rates.

✓ Gain the confidence that "my resume is a winning resume."

→ You will no longer worry if "this is right" and can confidently click the apply button.

→ When you receive an interview invitation, you'll think "Of course" rather than "Finally!"

✓ Your perspective changes completely (Most important!).

→ "What else do I need to learn?" → "What can I show with what I already have?"

→ "I am lacking" → "This is how I am differentiated"

→ "Building specs" → "Proving value"

🚀 What you will gain in the long run

✓ You will acquire 'resume design skills' that you can use for a lifetime.

→ You can update your resume immediately every time you change jobs or finish a project.

→ Because you understand 'why it should be written this way' rather than just using a simple template, you can apply it freely.

✓ You will gain a strategy to survive in the AI era.

→ From the anxiety of "Will AI take my job?" to the opportunity of "Let's grow 10x faster with AI"

→ Revealing real-world case studies of producing senior-level results in just 3 months

→ Presenting a concrete roadmap to becoming a 'developer who doesn't need a resume'

✓ Gain an overwhelming advantage in the interview.

→ Your resume becomes the interview script, ensuring you only receive the questions you want.

→ "Please explain this part in detail" → Respond perfectly with a pre-prepared answer

📊 Specific Deliverables

• A revised resume ready for immediate submission (final version)

• Self-diagnosis checklist with 10 items

• More than 30 copy-and-pasteable sentence templates

• 3 actual successful resume case studies

• Roadmap for Condensed Growth Strategies in the AI Era

And above all, "I can do it too" – an unshakable conviction

Features of this book

Why doesn't effort lead to results?

This book clearly diagnoses the reason why,

presents a concrete formula that turns all of your experiences into 'pass signals'.

Feature 1. Data-verified, reproducible formula

Does a resume that is guaranteed to pass exist?

With this question in mind, I have conducted countless experiments and research over the past two years. I have not only proven it myself but also confirmed that my hypotheses and methods work while working with numerous mentees.

I don't rely on vague "success myths" or personal "intuition."

Beyond just one person's success story, I wanted to create a 'success formula that anyone can replicate.'

For over two years, I conducted countless tests and verifications myself. I searched for the way forward while deliberating alongside more than 160 mentees. Embracing the desperation contained in each and every person's resume, I pondered together, "How can I make this person's value shine even brighter?" Through that intense process, a vast amount of data naturally accumulated regarding which sentences invite acceptance and which expressions lead to rejection.

This book contains only the most definitive 'formulas' that survived that entire journey, allowing you to replicate a success rate of 8 out of 10.

.

.

.

Feature 2. A fundamental solution starting with a shift in perspective

Are you worried that you have nothing to write? I'm sorry, but you're asking the wrong question.

Many people focus on fixing the 'sentences' and 'words' of their resumes. However, the real problem isn't writing skills. It is the 'perspective' itself that views a resume as a 'record of what I have done.'

This book suggests a 'remodeling of perspective' that recreates all your experiences into a 'marketable story,' rather than a 'quick-fix prescription' of adding another line to your credentials. Before worrying about 'what more to learn,' it first solves the problem of 'how to showcase what I already have.' When your perspective changes, the same experience transforms into a completely different resume.

• The wrong question ❌ "What other skills should I learn?"

• The right question

  ✅ "What can I prove with what I already have?"

This book doesn't just tell you the method (How) of "write it like this." It helps you understand the principle of "Why you should write it that way" (Why) first.

I want to change not what you have, but the eyes with which you see it. Because once a perspective changes, it becomes yours for a lifetime.

.

.

.

Feature 3. Not a 10-year senior, but the story of someone who was just like you 3 years ago

Because I am someone who failed first, I understand your current concerns more accurately than anyone else.

Sometimes, the advice of someone just one step ahead is more accurate than the success stories of those who are too far ahead or the tales of great figures who have already surpassed you by a long margin.

I started in my 30s, was a non-major, had a starting salary in the 20 millions, and failed more than 300 times.

So, what makes it different?

• ✓ It covers a 'story of overcoming failure,' not a 'myth of success.'

  Instead of "I succeeded because I worked hard," I will show you "I figured out why it wasn't working."

• ✓ We provide 'realistic solutions' rather than 'idealistic advice.'

  Instead of saying "This is how you do it perfectly," I show you, "I had these handicaps too, and this is how I broke through them."

• ✓ Showing a 'reproducible path for anyone,' rather than a 'method for geniuses.'

  Because I succeeded without a flashy background, you will gain the realistic confidence that "I can do it too."

Instead, it may be sharper and more painful.

Here is what you will learn.

Section 1: How to Design a Winning Game (Perspective Reset)

Why isn't my resume being read? You must first understand the rules of the game!

Core Keywords

Perspective Shift | Redefining the Essence of a Resume | Recruiter Psychology | Problem-Solving Narrative | Practical Case Analysis

A winning resume's success or failure is decided even before the first sentence is written.

This is because everything is determined by whose perspective you take and what strategy you use to approach it. In this section, you will learn the most fundamental shift in perspective that will transform you from a 'rejected applicant' into a 'selected talent.'

• ✓ The '40-Second Rule' to Hack the Recruiter's Brain

  You will learn the reality of 'negative filtering'—which weeds out 90% of candidates—to understand why your resume gets rejected without even being read, and learn how to survive it.

• ✓ How to redefine your ordinary experiences as 'Grade-A products'

  Redefine your resume not as a "personal diary," but as a "marketing document to sell yourself." We will completely shift your perspective from "what I have done" to "what value I can provide."

• ✓ The technique of finding weapons in your real 'story', beyond just specifications

  While others focus only on flashy tech stacks, those who get hired sell their "story." I will show you the techniques to uncover the powerful weapons hidden within your own experiences.

• ✓ The principle of 'strategic editing' that turns even weaknesses into a powerful narrative

  You will learn the principles of how to turn your weaknesses, such as being a non-major or having career gaps, into compelling stories through real-life examples.

Once you finish reading this

• "Ah, so that's why my resume wasn't being read" You will be able to make a clear diagnosis.

• "This is how I should write it" You will gain specific solutions.

• You will feel the conviction that "I can do it too."

.

.

.

Section 2: How to Create a 'Story' That Always Passes (Practical Writing)

"Ready-to-use templates and a growth strategy that puts you 10 years ahead"

Core Keywords

Copy-pasteable Templates | Analysis of Successful Resumes | Case-by-case Strategies | AI-driven Rapid Growth | Long-term Career Planning

Now that you have the right perspective, it's time to turn all your experiences into a story that "must be read."

In this section, we cover everything from the principles of writing that resonate with a developer's brain to the magical formula that transforms any experience into a winning narrative. We deal with all the practical techniques that will get your hands moving directly.

• ✓ A 4-step formula to turn any experience into a 'problem-solving' story

  → A bland list of features transforms into an intriguing 'exploration log' that leaves interviewers with no choice but to ask questions.

• ✓ "So... what should I write?" 30+ 'copy-paste' ready sentence templates to end your frustration

  → Stop wasting time in front of a blank screen. You can upgrade your resume instantly by choosing the sentences that fit your specific situation.

• ✓ How did non-majors, rookies, and juniors get hired? In-depth analysis of 3 actual successful resumes

  → We dissect the success strategies of those who started in similar situations to yours and how they crafted their stories, making them entirely your own.

• ✓ Resumes are just the beginning: How to become a developer who 'grows 10x with AI'

  → We reveal a specific roadmap to becoming a 'developer who doesn't need a resume' and real-world case studies of producing senior-level results in just 3 months.

After reading this far:

• Today, right now, you can revise and submit your resume.

• You can predict interview questions and prepare scripts in advance.

• Beyond short-term employment, you can design a long-term career strategy.

.

.

.

💡 The Composition Philosophy of This Book

Part 0-2 (40%): Resetting Perspective + Understanding Principles

→ Accurate diagnosis of "why it didn't work"

Part 3-6 (60%): Practical Application + Growth Strategy

→ "How to do it" Specific execution

.

.

.

🎁 PLUS: Don't struggle alone 

Special Q&A Appendix to resolve even your final doubts

"What if I get stuck while reading the book?"

"My situation is a bit unique; can I apply this to mine as well?"

It doesn't end with just a one-sided delivery of knowledge.

I will provide answers in advance to all the questions and anxieties you may encounter on your journey to completing your resume.

• 1. Mid-point Checkpoint Q&A to Keep You on Track

  As you read the book, these questions may arise.
  
  

  "My project is just ordinary, though?"

  
  

  "How can I write about achievements when I'm a newcomer?"
  
  ... It's okay.
  
  At every point where you might feel lost, this book has pre-arranged the exact questions asked by mentees who walked the path before you, along with clear answers.

• 2. Almost every problem you will face, Practical Mentoring FAQ 60

  These are not hypothetical questions.

  
  

  
  

  We have collected the records of actual concerns found while working hard alongside over 45 mentees from Inflearn and a total of 160 mentees from other bootcamps over the past year.

  
  

  
  

  From resume formats to technology choices, interviews, and career strategies.

  
  

  I am confident that the answers to almost every question you will face in the future are already contained within this.
  
  

  ✓ TOP 10 Most Frequently Asked Questions

  
  

  ✓ Solution strategies for each case (Non-majors/Career changers/Gaps/Age)

  )

  
  

  ✓ Detailed questions that made you wonder, "Is it okay to ask even this?"

  
  

  ✓ Specific solutions that actually worked

  
  

  

• 3. 🚀 NEW — The Game After Passing: Special Appendix on Salary Negotiation & Interview Reverse Questions. If you made it to the interview with your resume, it doesn't end there.

  
  

  The 3-second difference before saying "Thank you, I accept" can create a gap of tens of millions of won over 10 years.

  The moment you end the "Do you have any questions?" part with "Not particularly," the preceding 45 minutes become meaningless.

  
  

  
  

  To take responsibility for the real game that begins after passing the interview, we have included a practical guide based on psychology., chúng tôi đã đưa vào bản hướng dẫn thực tế dựa trên tâm lý học.

  
  

  
  

  ✓ Salary Negotiation — Anchoring, Prospect Theory, and Framing: 3 Psychological Laws of the Negotiation Table

  
  

  ✓ Salary Negotiation — "Desired salary?" "Current salary?" Practical answer strategies for frequently asked questions

  
  

  ✓ Interview Reverse Questions — 3 formulas to influence the interviewer's mind and 10 ready-to-use reverse questions

  
  

  ✓ Interview Reverse Questions — 5 Landmines to Avoid at All Costs & Situational Playbook

  
  

Until it happens—that's my way.

It doesn't end with just a book. I will truly be with you until you pass.

While mentoring, I realized one thing.

"Hardly anyone can finish it with just one book."

Real change must come from 'action'.

But the path of taking action alone is lonely and daunting.

We shouldn't just talk about it; we need to actually go together.

[A Promise to All Buyers]

1. Invitation to a 'Growing Together' Developer Community

   Stop struggling alone. I will invite you to a KakaoTalk group chat where over 100 people are currently gathered. We share information together and move forward while cheering for each other's growth.
   
   

   ✓ Invitation to the official KakaoTalk community (currently 100+ members)

   
   

   → Networking with peers who share the same concerns

   
   

   → Real-time sharing of acceptance reviews, interview tips, and the latest recruitment information

   
   

   → Comfort in knowing "I'm not the only one struggling" and the motivation that "I can do it too"

   
   

   
   

2. 1:1 Open Chatroom with Author 'Grit' Now Open

   From minor questions where you wonder, "Is it okay to ask something like this?" to unspoken career concerns. We are opening a private channel just for you, 24/7, 365 days a year. Any question is welcome.

   
   

   
   

   I welcome you to bother me.
   
   ✓ 1:1 private Open Chat room provided

   
   

   → Personal questions that may be uncomfortable to post in a public community

   
   

   → Any questions are OK (Resume, technology, overall career)

   
   

   → 24/7 support and answers anytime

   
   

   
   

3. Lifetime Updates & Additional Materials

   I will update the book as the job market changes. If I find any materials worth sharing, I will share them with you first.

   
   

   
   

   → Free updates provided whenever new case studies or templates are added

   
   

   → A book that continues to evolve even after purchase

   
   

   
   

   
   

🔥 [None of this matters if it doesn't lead to an acceptance]

I am providing the core benefits, which were initially limited to a first-come, first-served basis and are equivalent to professional mentoring, to all purchasers.

What's the point of hiding everything I have?

I'm giving you everything I can.

✅ 'Unlimited' resume editing until you get hired

This is not a one-time feedback session that ends after a single look.

From setting the direction of your resume down to every single sentence, I will be with you until both you and the company are satisfied.

✓ Unlimited Resume Editing (No limit on the number of times)

→ Not just "this is good enough," but to the level of "this will definitely get you hired."

→ It's not just once or twice. 10 times, 20 times... until you get accepted into the company you want

Just like actual mentoring. Some people revise their work more than 10 times. Those are the ones who eventually succeed.

✅ Providing 'Mock Interviews' in the same environment as actual interviews

After passing the document screening, prepare for the most daunting stage—the interview—just like the real thing.

Even for mock interviews, different styles are needed depending on the characteristics of the company.

From expected questions and follow-up questions to pressure interviews. We maximize your chances of passing to the limit.

✓ 1 Mock Interview session provided (Google Meet, 60–120 minutes)

→ Resume-based practical questions + immediate feedback

→ Accurate diagnosis of how you appear from the interviewer's perspective

⚠️ Please read before purchasing.

Lastly, I'm going to tell you something truly important.

This book is not magic.

Nothing will change just by buying the book. Your resume won't be automatically completed the moment you download the PDF. Your pass rate won't increase just by reading it.

I'll be honest with you.

This book is going to demand a lot from you.

✓ First, 'time'.

• 3-4 hours just to read through Parts 0-6 carefully

• Actually rewriting your resume will take 5-10 hours

• 2-3 hours to refine while referring to the Appendix FAQ

  
  

An absolute investment of at least 10 hours or more is required.

✓ Second, it's 'courage'.

• The courage to coldly face the question, "Why didn't my resume make it?"

• The courage to admit, "I was wrong."

• The courage to decide, "I need to completely overhaul the resume I've built up until now."

You may need to completely overhaul your resume.

✓ Third, it's 'action'.

• You must sit down at your computer and type it out yourself.

• Read Part 3 and rewrite your self-introduction yourself.

• Read Part 4 and completely overhaul your project descriptions.

• Revise it 10 or 20 times using the appendix checklist.

Reading is not enough. You must write it yourself.

✓ Fourth, 'patience'.

• The patience to accept that perfect results may not come all at once

• The patience to look for 'areas for improvement' instead of feeling frustrated when you receive another rejection email.

• The patience to maintain your own pace without feeling rushed by the news of others' success.

  
  

It requires the patience to believe in the right direction and move forward, even if things don't change overnight.

Lastly, I will be completely honest with you.

If you do this, nothing will change even after buying this book.

❌ Just glancing through the PDF once after downloading it and finishing there

❌ Putting it off by saying "I'll do it later" and then forgetting about it

❌ Reading it but not actually revising your resume

❌ Giving up halfway, thinking "I don't think this is for me"

❌ Looking at the checklist and skipping it because it's "too much trouble"

You are 100% just wasting your money.

But on the other hand, what if you actually put it into practice?

✅ Part 0-2 Realizing "Ah, so that's why I failed" while reading

✅ Read Part 3-4 and actually move your hands to fix your resume yourself

✅ Learn the patterns by looking at the successful examples in Part 5 and realizing, "So this is how I should write it."

✅ Polishing more than 10 times using the appendix checklist

✅ If you get stuck, go back to the Part 7 FAQ to find the answer

✅ Ask questions and receive feedback in the community

If you do this, your resume will definitely change.

Once you gain confidence from your resume, many things will change from then on.

This is because the first step, the document screening process, is a part that can be made perfect through thorough preparation.

Once your resume is complete, you can focus on the next steps, making it realistically possible to get accepted into top-tier companies.

If it still doesn't work after you've tried, bring it to me. Bring it ten times, or even twenty times.

There is only one condition.

Think for yourself, take action, put in the effort, and do not give up.

I will help you until it works, until the very end.

Do you have any questions?

I will answer in advance the questions that were asked most frequently and the ones you are likely most curious about.

Notes before taking the course

Learning Materials Provided

Q&A Support

Copyright and Important Notices

.

.

.

[October 25, 2025 Update]

6 real-world mentoring FAQs reflecting vivid concerns have been newly added!

We are continuously updating the content based on real questions and answers from actual 1:1 mentoring sessions. Even now, I am working intensely with mentees every week to complete their resumes, and I am incorporating the core insights gained from that process into the book without missing a beat.

These questions are actual inquiries sent via KakaoTalk by book buyers and mentees who are working hard with me to complete their resumes. We have these kinds of conversations quite often!

Here are the brand-new FAQ items that were recently added.

• Q. I'm a new hire, and the offered salary is lower than I expected. Is it okay to try negotiating? Will there be any disadvantages? (feat. How to provide justification)

• Q. How should I answer if I'm asked about the overall architecture that I didn't design myself during an interview? (feat. Answering only as much as you know)

• Q. I feel lost on how to prepare for a culture fit interview.

• Q. I finally passed! What should I focus on after joining the company? (feat. Resume-Driven Development)

• Q. Are study group activities a must?

• Q. Is it okay to push back the start date after being hired? (e.g., for travel)

  
  
  

[Updated November 8, 2025]

Major upgrade to Chapter 15, 'Character Headlines'!

The 'headline' is the most important element that determines the first impression of a resume.

To solve the problem of many people getting stuck on abstract phrases like "growing" or "striving," we have extensively upgraded Chapter 15: The Power of a Single Sentence in Creating Your Own 'Character.'

Through this update, we present a new fundamental principle and framework regarding why "the worst headlines" are bad and what makes "the best headlines" different.

Discover specific strategies to define yourself through 'verbs' rather than 'nouns' and captivate recruiters with 'high-resolution' sentences. This chapter alone will completely transform the first impression of your resume.

[Updated February 17, 2026]

🎊 [Special Appendix] Included — Practical techniques to flip the script on interviews and increase your market value after passing the resume stage (Total 258 pages)

If you've made it to the interview with your resume, the real game begins now.

Having conducted over 180 mentoring sessions (as of February 2026), I have seen countless people who performed well in technical interviews but crumbled at the very end, or those who regretted accepting their initial salary offer immediately after being hired. To ensure that I take responsibility not just for completing the resume, but for the practical stages following acceptance, I have added a special appendix.

● Appendix A. Salary Negotiation Essentials — A 3-second difference makes tens of millions of won Anchoring effect, prospect theory, and framing effect. It includes three psychological laws that work at the negotiation table, practical answer strategies for "What is your desired salary?", market data collection methods, and five practical principles you must never forget.

● Appendix B. Interview Reverse Question Essentials — The last 5 minutes determine your acceptance The Peak-End Rule, the Benjamin Franklin Effect, and the Simulation Effect. This section includes 3 psychological laws that influence an interviewer's mind, 3 ready-to-use reverse question formulas, 5 landmines to avoid at all costs, situational guides, and a selection of 10 reverse questions.

This appendix is a condensed version of the core content from the separate e-book series provided by the Team Grit Library. We have curated it as an "essential" version so that those who chose this book can also benefit from it.

I will continue to update insights from the field so that you can consistently have the experience of "it's like receiving mentoring from this one book." 🙇🏻‍♂️🔥