An effeminate boy named Pico works summers at his grandfather's café, hoping to make some friends. He soon meets a man named Tamotsu "Mokkun", who seduces him, believing him to be a girl. Later at Mokkun's house, Pico asks Mokkun what he thinks of him, but he does not respond. Pico runs away and cuts his hair. Mokkun searches for him, and the two reconcile at the end of the episode.

After Pico finds a boy named Chico swimming nude in a stream, they become friends, after catching Chico's sister masturbating, Pico shows Chico how boys can do it, and the two have sex.

Pico and Chico meet a runaway named Coco who lives in a hideout underneath the Tokyo subway. Pico, falling in love with Coco, begins to question his feelings for Chico, especially after he catches Coco and Chico having sex together. After a brief separation, they reconcile with a threesome atop Tokyo Tower.