Jang Jae-yeol, portrayed by Jo In-sung in the K-drama “It’s Okay, That’s Love,” is a complex and intriguing character. He is a bestselling mystery novelist and a charismatic radio DJ. Despite his confident and playful exterior, Jae-yeol struggles with deep-seated trauma from his childhood, including witnessing his father’s violent death and suffering abuse from his brother. Jae-yeol’s trauma manifests as obsessive-compulsive disorder (OCD), which leads him to have peculiar habits, such as only being able to sleep in his bathtub. His life takes a turn when he meets Ji Hae-soo, a psychiatrist with her emotional scars. Their relationship starts rocky but gradually evolves into a healing journey for both of them