In this adult club role-play, swim-team captain Sakura Minato has a fierce sense of justice. To protect another adult member targeted by a gang of delinquents, she offers herself in her place, saying, “Do it to me instead.” That choice begins days of abuse: a four-person assault in the locker room, lotion and vibrator torture in a classroom, and a gangbang beside the pool while the other team members practice nearby. Attacked wherever they choose, Sakura struggles to keep resisting to the very end.