I regret not having come across such a great lecture earlier. At first, I thought the content would be lacking because it was 20,000 won. However, most domestic Unreal lectures use Blueprints and deal with C++, so I honestly think that this price is ridiculous. He gives various approaches to implementing certain functions and how to implement them, and he selects the best method among them and teaches you how to implement them. Although it is a light lecture, he teaches you how to use fork, open source analysis, and sample analysis to teach you a little more, so I am really satisfied. The only regret is that I heard that Rookies is currently busy and the official Unreal lecture will be postponed a lot, so I regret that I cannot learn more. However, I think that I can learn this much and the rest can be learned sufficiently by just looking at overseas YouTube, official documents, and Googling.