 21 year old Kohei Tabuchi, known as Bussan to his friends, is told he has just months to live. When he decides to do something daring his friend Ani provides him with perfect target - their grotesque baseball coach Nekota who is working as a small time crook for Yakuza wannabee Mr Yamaguchi. Bussan gathers his closest friends (along with rival Bambi and oddball Uchi who overhears), to take part in a scheme to get one over on their corrupt coach but he soon has to own up to them about his condition.