Mihara, a 25-year-old layabout living in Tokyo, is gently convinced by his mother to apply for a job back in his hometown. His old school is looking for a bus driver, and thinking of it as easy work, he readily takes it on. When he arrives, however, he finds the school consists of 17 motley students who are reluctant to like him. But precocious schoolkids and bumpy roads aren't the only problems he'll have to deal with - on top of that, he's told that if the school doesn't have 30 enrolments by the next school year, it'll be forced to close?!