While studying computer science, I vaguely dreamed of working in the security field, but there weren't many classes on the subject, and even when I searched online, there was less information compared to other fields, which left me feeling really lost. However, through detailed and Kind lectures that even non-majors could understand, and numerous practice problems that were great for reviewing and reinforcing what I learned in the lectures, I gradually gained confidence and hope that I could work in this field. It didn't stop there - through Discord, I was able to get quick answers to questions, information about various competitions, and opportunities to form teams. Although I haven't completed all the lectures yet, I want to finish them all and achieve my dream. I'm truly grateful to have this experience at such an affordable price!