Yuria, a female college student, is the daughter of a wealthy family. She has a boyfriend named Kitayama. Kitayama is a refreshingly handsome man, but in reality he is a potential member of a yakuza gang, and he approached Yuria on the orders of his older brother. Yuria falls into a clever trap set by Kitayama, and becomes a "tribute" to the yakuza bosses who appear one after another, and she falls into depravity... Once she is seduced by sex, she goes crazy and faints repeatedly, whether she is caressed or penetrated!!