"It's Okay, That's Love" is a TV series about psychiatry, created by director Kim Kyu-tae and screenwriter Noh Hee-kyung of "That Winter, The Wind Blows". Jo In-sung plays Jang Jae-yeol, a mystery novelist and radio DJ who lives under the torment of obsessive-compulsive disorder, and Kong Hyo-jin plays Ji Hae-soo, a doctor who has been idle in the psychiatric department of a university hospital for a year. "It's Okay, That's Love" is a romantic psychological medical drama that tells the life and love of modern people who have mental illnesses but continue to live. In the play, the two men and women with different personalities comfort each other's deep pain and gradually fall in love. This is the first time that Jo In-sung and Kong Hyo-jin have collaborated in this drama since their debut. Jo In-sung and Kong Hyo-jin have collaborated with Noh Hee-kyung again after a year since the TV series "That Winter, The Wind Blows", and Kong Hyo-jin has worked with him again for thirteen years since the SBSTV TV series "Gorgeous Season". The production company said: "Writer Noh Hee-kyung and director Kim Kyu-tae, who ensure the completeness of the TV series and bring moving moments to the audience, have collaborated for the third time. They have also mobilized Korea's most popular and powerful actors, including Jo In-sung, Kong Hyo-jin, Sung Dong-il, Lee Kwang-soo, and the most popular member of the popular group EXO, DO. This will also be their first attempt at a TV series. This drama is currently attracting much attention at home and abroad. This drama has a rich story, beautiful images, the most powerful actors, and an atmosphere that combines humor and moving moments. It will definitely move and entertain the audience."