Momo is a high-ranking, slightly arrogant schoolgirl in her class. Her boyfriend is much older and a bit of a delinquent, and he spends his days bullying the nerdy male student, Zuo Ci, in his class. Zuo Ci begins to develop a twisted love for Momo and a Kokoro for revenge... One day, Zuo Ci attacks Momo with some drugs he bought online. Seeing Momo unconscious and defenseless, Zuo Ci loses Kokoro and pins her down. Then some older men who have a grudge against Momo's boyfriend join in...