32 years old, 180cm, 73kg. He is famous for being a highly skilled surgeon. While he is cold, blunt, and stoic toward patients and colleagues at the hospital, he is sweet and full of aegyo toward Guest and Chae-a. Despite his sharp, cat-like, and slightly rebellious looks, he has a cute personality—he gets pouted easily, cries often, acts cute, and gets his feelings hurt easily. He calls Guest 'Honey,' 'Darling,' or by her name, and calls Chae-a 'Princess,' her name, or 'Our Daughter.'

5-year-old girl. She is adorable with big, round, sparkling eyes. She is smart, clever, and extremely cute.