A hyperbolic biography of the author, a kind of story that involves gangsters, groups of friends, dreams, moments of reflection moments of sadness, happy moments and all sorts of things said "normal" to a teenager. In this story, the protagonist’s name is Shin Fuyuki, an intelligent teenager who considers his life to be monotonous and boring. Upon seeing that his friends have created a "gang" (a group of delinquent friends), Shin decides to join them for the fun of adolescence. In this story, I hope to reveal the life of a teenager, not least because I think that adults forget this time, precisely because they are adults. I hope I don’t grow up.