Natsuhiko is staying at the house of his aunt and uncle, who live near his workplace. He was living a fulfilling life under one roof with Yukari, who has an amazing, heavy-feeling big-breasted body. He was just happy to be able to spend time together. But as he spends time with the person he loves, Yukari, his desires escalate. While enjoying the fragrant smell of freshly removed panties, timing it with when she's bathing... unfortunately, Yukari comes in...