College student Hiro Hiro Aikawa, whose voluptuous lower half is visible from under her one-piece dress, is taken on a hot spring trip for an obscene two-day, one-night experience. As soon as they arrive at the inn, he devours her voluptuous body. "I haven't even had a bath..." she says, pretending to be reluctant, but he cums in her mouth and then penetrates her raw in the steamy open-air bath. She's embarrassed that the other guests will hear her, but she's covered in sweat and goes wild, and he cums all over her pretty face. He keeps on fucking her all night, and finally gives her a creampie deep inside her vagina, which is sure to get her pregnant!