Miu Sakuragi, the perfect academy idol, maintains a loving and intimate relationship with her childhood friend Kou, but her life takes a dark turn when she is manipulated by her classmate, Shun. After being tricked into a trap under the guise of a professional meeting, Miu is subjected to sadistic abuse and forced into a submissive role. Despite her horror, Miu finds herself caught between her genuine affection for Kou and a disturbing, new awakening triggered by Shun's cruelty.
Miu is forced into a life of submission under the control of Shun and the school principal, who subject her to degrading acts. After Shun is arrested, Miu reveals her corrupted nature to her boyfriend, Kou, and begs him to treat her with the same dominance, leading the couple into a taboo sexual awakening.