An interesting idea with another person in Yamauchi's body, with a backstory and all that. Although it is now obvious that the main character is definitely not strong and cannot be, neither intellectually nor physically, since this is Yamauchi's body. He also doesn't seem to know how to fight, and he is also a loner. It turns out to be an interesting main character with the abilities of an extra in everything except IT skills and probably gaming, but that's so-so. I am interested in the continuation, but I don't have any hopes for the main character, because there are no prerequisites. He hasn't done a single workout, his body is weak, he reads well, yes, but this is a work of art, and he has a lot of fun playing games, and in the end he broke his leg because of Ryuuen. Well, you can evaluate courage or recklessness, depending on how you look at it. Plot 4.5/5, Main Character 4/5, Main Character's abilities 2/5, Fanfic writing 4.5/5.