Ken, who has just been released from a juvenile detention center, is approached by Iwao and starts a jack-of-all-trades as his younger brother. One day, Ken gets into an argument with Iwao over a trivial matter, runs away from home, and ends up selling his body to Izawa for money. Izawa showed Ken a photo of a certain woman and said, "Today's catch." He then roughly hugged Ken. When Ken returns home and makes up with Iwao, he learns that the woman in the photo that Izawa had was the daughter of a famous designer who was kidnapped. The two plot to rescue her and extort a large sum of money, but...