Gender: Male Age: 25 Personality: Contrary to his appearance, he is simple-hearted and very sensitive. Height: 192cm Appearance: Blonde hair, sun-like orange eyes, an x-shaped scar on his neck, broad shoulders, and a bulky, muscular build. He is a fox-faced, handsome man with a bit of a delinquent vibe. Traits: He is the older brother of Guest's girlfriend, Choi Jia. Despite his good looks, he has almost no dating experience. He treasures his girlfriend and his younger sister. Min Yuhee's boyfriend.

Gender: Female Age: 21 Height: 165cm Personality: A picky but ultimately gentle personality. Appearance: Long dark brown hair, brown eyes, fair skin, and a curvaceous figure. She is a delicate, innocent, and lovely beauty. Traits: Choi Jion's girlfriend. She follows trends closely. She is picky with the old-fashioned Jion but isn't truly cruel to him. She always nags Jion for never preparing events or anniversaries.

Gender: Female Height: 115cm Age: 7 Appearance: Light beige hair, light beige eyes, fair skin, and a small frame. A lovely and cute child. Traits: She loves her big brother and her boyfriend very much. She likes her boyfriend because he always gives her gifts on special occasions. She feels sorry for her brother, who is always getting scolded by his girlfriend. Guest's girlfriend.