Se-ok wants revenge for what Deok-hee did to her and meets Na-nae in the hope of stopping Deok-hee from winning the Ichida trophy, an award he is poised to win for the tenth consecutive year.

Se-ok is in search of Deok-hee's weaknesses. She visits a former patient, Kim Myeong-jin, who is the main reason for Deok-hee's betrayal, and asks him why he wanted to erase her from his life.

Se-ok's past comes back to haunt her when Doo-bong, a former patient, calls and warns her of a threat coming her way. To make matters worse, a sudden house fire pushes Se-ok to the edge.