Innocent 15

Gin is a 15-year-old boy. He knows that his father is a gay and he wonders if he might be the same. Narumi is a 15-year-old girl. Her mother tells her she should prostitute herself. Narumi decides to go to her father in Tokyo. Gin tells Narumi that he is going as well. The two 15-year-olds set out on a trip to Tokyo.