The drama is a warm drama that will find the answer to "Where does happiness come from" through the stories between psychiatrists and patients. Shin Ha Kyun will play Lee Shi-joon, a psychiatrist at a general hospital in the drama. He is a weird doctor who is best at making friends with patients and is dedicated to treatment regardless of methods. He maintains a sense of humor no matter how serious the situation is and conveys positive energy to the people around him. He is easy-going but sometimes difficult to deal with, eloquent, can make anyone let down their guard, and insists on his unique treatment method. "The King's Face" and "Neighboring Lawyer Jo Deul-ho" were written by Lee Xiangxi, and "Unkind Women" and "The Best Divorce" were directed by Liu Xianji.