Ugotoru is a tool for self-study of sports, dance and other movements based on videos. There are many movements in the world that we want to learn, from videos on the web to teachers teaching in front of us. But doesn't it take a lot of time and effort to be able to do those movements yourself? We believe that there are three reasons for this. 　1. It is difficult to understand everything from the whole to the details just by looking at it. 　2. It is difficult to reproduce exactly what you see