Third-generation business heir suffering from dissociative identity disorder due to past trauma. He struggles to regain control of his life and prevent his seven alternate personalities from taking over.
Tae-im works for the Cha family and knows some secrets
Chae-yeon was Do-hyun's first love who died tragically
Seo-yeon is Do-hyun's arranged fiancée
Joon-pyo is Do-hyun's father, who has been abusive
Geon-ho is Do-hyun's grandfather, head of the family
Ki-joon is Do-hyun's uncle who has been involved in the family's dark secrets
Ri-on initially investigates Do-hyun but later becomes his ally
Cha Do-hyun develops romantic feelings for Oh Ri-jin, his psychiatrist who helps him manage his DID
Explore the full interactive character relationship map of Kill Me, Heal Me