Cha Dohyeon is a rich heir to a family company with one major problem. Due to suppressed childhood trauma, he suffers from dissociative identity disorder manifested in seven unique personalities who are out of his control. In order to overcome this disorder in secret, he hires a first-year medical resident to help him heal by killing off each personality one by one.

Women gather power to revenge on targets, as well as uncover social injustice.

Twenty years after leaving her medical career, a housewife returns as a first-year resident — struggling to find her footing in a job full of surprises.

Kim Nak-su is a middle-aged man who loses everything he once considered valuable in an instant. After a long journey, he finally discovers his true self, beyond his role as a department manager at a large corporation.