In a Tokyo love hotel district, a woman is found dead in a derelict apartment. As police investigate, a romance novelist's wife lives a life that seems simply a daily repetition without romance. To break away from the loveless monotony, she follows her desires and becomes a nude model enacting sex in front of a camera. Soon, she meets a mentor and begins selling her body to strangers, while at home, she hides behind the façade that she's still the doting wife she's supposed to be.

Shamoto runs a small tropical fish shop. When his daughter Mitsuko is caught shoplifting at a grocery store a man named Murata steps in to settle things between the girl and the store manager. Murata also runs a tropical fish shop and he and Shamoto soon become friendly. However Murata hides many dark secrets behind his friendly face.

The story of a teenage boy named Yu, who falls for Yoko, a girl he runs into while working as an "up-skirt" photographer in an offshoot of the porn industry. His attempts to woo her are complicated by a spot of cross-dressing – which convinces Yoko that she is lesbian – dalliances with kung-fu and crime, and a constant struggle with the guilt that's a legacy of his Catholic upbringing.