Men exploit Rena's anxiety about her first long-distance relationship. She and Makoto have lived together for a year and are engaged, but he is transferred away for six months and his growing workload leaves less time to call. Her loneliness turns into suspicion that he is cheating, so she contacts his coworker Yano for advice. Claiming he can ease her fears, Yano gives her a suspicious herbal drug. With her whole body hypersensitive, Rena arches her huge breasts and climaxes repeatedly in drug-fueled group sex, spraying drool, sweat, and squirt everywhere while wearing a dazed orgasm face.