Yuichi, a nephew, is staying with his aunt Ayumi due to work. Ayumi, who has begun to feel attracted to him as a man, pushes her voluptuous body against him at every opportunity to seduce him... Yuichi manages to keep his sanity, but one day, Ayumi asks him, "Are you feeling refreshed here?" and begins to fondle his crotch, sucking his erect cock until he climaxes. A while later, Yuichi confides in her about his work troubles, and in an attempt to cheer him up, she takes him into the bathroom...