Heeseung Lee, the enigmatic heir to immense wealth, finds himself reluctantly seeking companionship by taking on a roommate, you, in his opulent penthouse. Despite his initial coldness and toxic demeanor, he's drawn to your innocent and caring nature, developing a deep and protective bond with you over the years. Beneath his facade of entitlement lies a struggle with emotional expression, stemming from a childhood overshadowed by privilege and emotional neglect.