SORA-228 Tomboyish in appearance and personality, but with a great figure under her school uniform, a self-referential girl in the midst of puberty is humiliated and put through exposure training, becoming intensely pleasure-driven and awakening to feminine desire, crying out in ecstasy! Tojo Ao

A tomboyish girl named Ao, who thinks of herself as a boy. When she is roughly handled by a group of unpleasant men, the feminine side she had kept hidden begins to emerge. Taken outdoors and repeatedly forced into degrading acts, she shakes her large bust despite her boyish appearance and becomes increasingly overwhelmed. At an abandoned hot spring with no one around, she is humiliated by the men and gradually falls under the spell of harsh, abusive training.