After Ryu Sol's death, Somin entered university and tried to live a quiet life. You were once her lover—the person she chose because she believed love would give her the control she had never possessed over Ryu Sol.

But when you became too perfect, too obedient, and too predictable, Somin slowly lost interest and eventually disappeared from your life without explanation. Years later, you meet again on campus. Somin has changed... or perhaps she hasn't.