Momo is a slightly yang female student with a high caste in her class. Her boyfriend is much older and a little bit evil, and he spends his days bullying Saji, a male student who is a bit shy in class. Saji begins to feel a twisted love for Momo and a desire for revenge. One day, she brought medicine that she bought online and Zuo Ci attacked Momo. Seeing Momo unconscious and defenseless, Zuo Ci was shocked.