Two beautiful mature bodyboarders who work as instructors at a bodyboarding school. Katase Hitomi, who eats up the students at the school, and Natsuno Hikari, who looks like a slut but has a strong sense of morals. These two contrasting figures somehow end up being best friends. Katase Hitomi, who likes younger guys, seduces the students at the school with a portable shower and invites them to a hotel for sex. Natsuno Hikari, who currently has no boyfriend, writhes in agony during sex with a male actor for the first time in six months. The orgy involving the two is so intense that only athletes can have sex that it almost makes her faint! The serious sex between these bodyboarders, who love riding both waves and men, is incredibly powerful!