Toru Ozaki is a student at a cram school. He spends most of his time witfh friends Hideki and Kei, indulging in marijuana and sex, and hardly studies at all. He lives with his father, Kunio, and his second wife, Ryoko. Toru is cold to Ryoko at every opportunity, but Ryoko tries her best to get along with him. One night, a burglar breaks into the Ozaki house...