The unnamed ghost of a suicide victim who possesses Dong-Young in order to terrorize the school where he was tormented by other students in life. Dong-young was saved by Woo-Hyun and Doh-Hyun although they did not know they had actually saved Chun-yoo Nim. This caused Dong-young to make remarks that nearly betrayed her true identity such as, "A male ghost was inside me!"