Kingou is a boy with extraordinary powers of concentration. However he doesn't put it to any practical use. He skips class in school, and is mocked by most classmates. Except for one kind girl called Shima. However even the friendly Shima can't get the loner Kingou to interact with his classmates.

An outing with a group of classmates, including one of the popular boys in class and Shima, leads to the astounding discovery that Kingou works at a Billiard hall. An incident with a Hustler leads to Kingou putting his talent of concentration to use, but everything is not as it seems...