人気マンガ家・立原あゆみの同名コミックを、松平健主演で映画化。濁組組長・久慈雷蔵は55歳で妻の久美子と熟年離婚を決意し、これを機にかねてからの希望であった夜間学校に通い始める。そんなある日、"マルハ"と名乗る子分志願の若者が現れ...。 This story is written by an famous Manga writer '' Ayumi Tachihara'' .This story was based from an Manga at first became an Movie which was act by '' Ken Matsudaira'' a famous Samurai actor from the '' Abarenbou Shougun ''. An Yakuza boss(Ken Matsudaira) getting tired of his Daily life he tries out for an part-time high school student which is an very impossible situation.