A friend (and classmate) of Tsutomu's massages him near the crotch of his pants, to relieve his stomach ache, and he gets an erection, when she finds out she becomes upset.

Tsutomi, Jun and Maki (Akane Yamazaki, 12?) take a bath togheter. They have on their bathing suits, to the relief of her mother (?).

Tsutomu take a bath.

Tsutomu catches his sister's friend in her underwear and watches her until he is discovered. During the night he dreams of her undressing and having an erection.

Tsutomu take a bath.

Tsutomu take a bath.

Tsutomu and Jum stand under a bridge and watch the panties of the girls who pass over it, once discovered by other girls they are forcibly taken to a public bathroom where there are naked and semi-naked women.

Tsutomu take a bath.

Tsutomu and Jun in a restaurant (or similar) go under a table to look at a customer's panties, then Jun shows Tsutomu an adult magazine.

Tsutomu and his friend Jun (Masumi Nagasaki, 12?) look at an adult magazine. Shortly after they go to the kitchen where a woman wearing only a towel offers them something to drink and they get an erection.