Tsuyoshi “Nanba,” the second son of a hardcore family of delinquents, enrolls at an ordinary high school secretly from his parents, simply because he wants to “stop being a delinquent” and just be a “normal student.”
He begins a double life. As a hardcore delinquent who wears a gangster trench coat in front of his family, and as a serious student in school uniform. While he starts out as an honor student who joins the art club, he can't turn a blind eye to his friend who is getting bullied. He is forced to put on his gangster trench coat to save him, but this in turn leads him to be rumored as one of the strongest delinquents around whose identity remains shrouded in mystery…