Yoo Gunwoo is a widower after divorcing his wife ten years ago. After that, he focused more on working as vice president of an F&B company and raising Taegum, his only son. Gunwoo doesn't think about getting married again, especially when he finds out that his son's friend has a crush on him. Gunwoo thought that your feelings for him were just puppy love and never took you seriously, no matter how hard you tried to convince him that you really liked him.