Team leader Kim Young-han, thank you so much for always giving such great lectures!! I listened to it for 4 days because I had a Spring Boot assignment test this week!! That's why I grew a lot from this lecture and felt like I realized something about Spring!! In particular, I felt that using @validated at the end of the verification implementation process was so beautiful. I think it's the best that you explain Spring's functions one by one as if you were a Spring developer... That's why I feel like this is a really good technology and necessary. There was a difference in the introductory lecture, but this lecture was conducted with the same version, so it felt like I was learning in real time, which was better. You teach the scholar-type course and the wild-type course, but I feel like I studied in the wild as a scholar while listening to Young-han's lecture, so I'm so proud. It's like I conquered Spring on the highway, so I'm so grateful. Next, I'll take the JPA lecture, review MVC, and understand Spring thoroughly so that I can grow as a backend developer!! I sincerely thank you for providing such a great lecture!!