Imperfect Sisters

“Big sis, we’re each other’s only sisters, aren’t we?” Ryu Sohee is a high school student who used to be seriously ill as a child but has since recovered and now lives an ordinary life. She has a younger sister, Ryu Ayoung, who is still frail and sickly. Ayoung adores and depends deeply on her older sister, but to Sohee, that devotion gradually starts to feel suffocating. After a certain incident, the bond between them begins to crack, and the two sisters grow increasingly uncomfortable around each other. A cruel mystery thriller about two sisters, unfolding amid the hidden secrets of their family.