Yuuri, a diligent honor student and aspiring doctor, is trained by the knight Suzune-sensei to fight demons as an Angel Goddess. While patrolling the city, Yuuri encounters a human tainted by demonic energy who claims the only way to be purified is through sexual acts. Driven by her selfless desire to save others, Yuuri submits to the man's demands, only to be witnessed by her classmate Tomo-kun, leaving her devastated as her purity is stripped away and her reputation is shattered by the very people she sought to protect.
Yuuri's suffering intensifies when a demon named Maya arrives, masquerading as a student to weave a web of deception. By tricking Yuuri's teacher and her friend Tomo-kun into believing that sexual acts are necessary for her salvation, Maya corrupts the people Yuuri trusts most. Trapped in a nightmare of exploitation, Yuuri watches helplessly as her loved ones succumb to their basest instincts, leaving her broken and unable to use her divine powers to stop the descent into depravity.
In a desperate attempt to save President Zendoui from demonic corruption, the Angel Goddess Suzune is coerced into a depraved bargain. To gather the "carnal energy" required for a cure, she is forced to endure repeated sexual humiliation and gang rape by a group of opportunistic men. Despite her intense disgust, Suzune submits to the abuse, sacrificing her dignity for the sake of the President's recovery.
Shizumi Suzune, a dedicated teacher, is trapped in a cycle of sexual exploitation and blackmail by a malicious man. To protect her student Kazuya's future after he is caught shoplifting, Suzune submits to further humiliation in exchange for the man's silence. However, her ordeal continues as she is targeted once again, facing a daring and public violation on a crowded bus right beside the very student she sacrificed herself to save.