Sakura Matsumoto is one of three girls who, near death, were transformed into cyborgs by the power of Gaia Force and regained their lives. Taking the name Pink Cat, she fights against the evil organization UnCrime. One day, her beloved best friend is kidnapped, and to save her friend's life, Sakura makes the desperate decision to abandon her battle. As a result, she is subjected to the most humiliating abuse at the hands of Estezara, her mind and body gradually breaking down. Under attack by a weapon of madness, she lets out lewd moans from her lips, suffering intensely until she reaches the end of her struggle.