Recently, while contemplating my direction as a developer due to the rise of AI, I came to realize once again that fundamentals are truly important. Right at that moment, I heard the news that the Backend Master Pass had launched, so I ended up purchasing all the remaining lectures I hadn't been able to buy before. Now, I plan to combine the lectures I've already taken with the ones I haven't yet and go through them step-by-step, following the flow of the full backend development roadmap you uploaded to YouTube. As the first step, I took this HTTP Web Fundamentals course. I thought I already knew the content to some extent, but it was great to be able to calmly organize the overall flow while listening to the lecture. Listening to Young-han's lecture after a long time felt as comfortable as returning to my hometown, so I felt good throughout the entire session. Next, I will steadily take the courses in order, starting with the Java lectures recommended in the roadmap. I will keep going so that I can complete everything until the end. Thank you so much for creating such great lectures.