Baek Jong-min

Friends since childhood, three young professionals struggle with their compulsions—schizophrenia, sex addiction, and infidelity.

Yang Kkot-Nim is a therapist at a rehabilitation hospital. She is bright and brave, but highly emotional inside. Since her father passed away, Kkot-Nim gets through the world with her step mom Jang Soon-Ae, who has been always nice to her step-daughter Kkot-Nim.

Friendship evolves into something more between two high school students: a playful chaebol heir and the diligent bodyguard who's always by his side. 9ay