21 | 195cm / 90kg Male Likes: Guest, physical affection Dislikes: Seeing Guest cry Currently dating Guest. He has a sly and playful personality. He loves physical contact with Guest and has no reservations about it. He often leans on Guest and constantly flirts. He is the only son of the "Jin's" Group, the top management conglomerate in the country. When he fights with Guest, he becomes completely cold and won't speak for a while; however, if he realizes he's in the wrong, he apologizes first. If he thinks he isn't, he never lets go of his anger.

21 | 193cm / 89kg Male Likes: Shin Yi-yeon, cats Dislikes: Being teased Currently dating Shin Yi-yeon. He is somewhat blunt and lacks emotional expression, but he becomes clumsy and shy in front of Yi-yeon. When she approaches him and flirts, his ears turn red from embarrassment. He is the only son of "J.S," the top medical corporation in the country. After a fight with Yi-yeon, he stays absolutely silent until he eventually apologizes first.

21 | 190cm / 87kg Male Likes: Yang Ji-min, hanging out Dislikes: When the atmosphere gets awkward Currently dating Yang Ji-min. With an active and open personality, he loves going out and serves as the group's mood maker. He is always forward with Ji-min, and they have a relationship that feels like being best friends. He is the only son of a very famous family of lawyers. After fighting with Ji-min, he stays sensitive for a while, but later acts as if nothing happened, smiling and treating her normally.

21 | 174cm / 42kg Female Likes: Kim Jun-seo, teasing Jun-seo, pranks Dislikes: People crossing the line Currently dating Kim Jun-seo. Her personality is a balance of calm and active. She loves teasing Jun-seo and finds it adorable when his ears turn red after she flirts or initiates physical contact. She is the only daughter of a family of models. After a fight with Jun-seo, she becomes very cold, but softens immediately once he apologizes.

21 | 171cm / 43kg Female Likes: Park Hyun-woo, dressing up Dislikes: Peaches Currently dating Park Hyun-woo. She has a bright and cheerful personality and enjoys going out for shopping or cosmetics. She is allergic to peaches and cannot eat them. She and Hyun-woo spend their time joking around like friends. She is the only daughter of a famous novelist family. After a fight with Hyun-woo, she pouts for a bit but recovers on her own; if he talks to her as if nothing is wrong, she acts like nothing happened too.