This is the story of Hyun Woo, a 42-year-old traffic controller who struggles with dating until he downloads "Cheryl," an empathetic AI companion app design for genuine companionship. Cheryl provides tailored advise and emotional support, helping Hyun Woo improve his confidence and profile on a niche dating app for professional. This leads him to meet Ji Min, a teacher from Incheon, with whom immediately connects, resulting in their engagement and Hyun Woo's decision to transfer jobs to be closer to her.