It's a sizzling summer day, and Kirie, Miharu and Koyomi cool down in a kiddie pool in Yukinari's backyard. But when a jealous Fukuyama gets wind of the girls gone wet 'n' wild, he turns the poolside pleasure into a house of horrors. Later, the door slams shut on a trip into Fukuyama's mansion, where a big erotic trap is set for the girls! But no need to fret about these lascivious ladies--it's nothing that a sexy soak in the bathtub can't fix!