Thank you for taking the course. I'm sorry that this course didn't meet your expectations. As I mentioned in the course introduction, the course aims to help students build their own systems based on an understanding of modular programming and structure by analyzing the skill system line by line. The course emphasizes that understanding the structure is more important than simply copying the skill system, and for this reason, the structure is explained repeatedly in the part where the skill system is explained in earnest. The lecture explains from the most basic parts, and as the lecture progresses, it proceeds in the direction of understanding the composition and structure of the skill system. I think it is my fault that you didn't feel like you were learning as you followed along. I am sorry once again that I did not give you a good impression of the course.