After losing both his job and home, 30-year-old Taichi stays with his brother and sister-in-law Marina until he can find work. His brother mocks him daily for still being a virgin, leaving him desperate for confidence. Taichi begs Marina to grant his lifelong wish and take his virginity. She feels sorry for him and agrees to allow it briefly, but the instant he penetrates her, an electrifying pleasure hits so hard that their exceptional compatibility leaves her craving repeated creampie sex.