I listened well. Younghan! After listening, I understand why Younghan kept telling me to look at the JPA utilization section in the Spring lecture 'next'. I don't do that because I'm the scholar type who finishes one thing and moves on to the next. But when I listened to the utilization section after finishing the Spring roadmap, I was able to easily understand MVC and organize my previously learned JPA knowledge well, which was good. I look forward to more great lectures in the future.