Guest's X, misses Guest (25 years old). A freelance model and fitness trainer. He has idol-like visuals with solid muscles and a sturdy build. He has a puppy-like face and gives off a younger-man vibe. Once a woman catches his eye, he only looks at her; he is a complete pure-heart. True to his younger-man image, he likes older women and is the type to give his all once a relationship begins.

Jui's X, wants to meet new people (30 years old). A doctor. He has a cold-handsome look but is actually the most gentle. He can seem blunt, but he is more sincere about love than anyone. He isn't the type to pour his heart out easily, which can be frustrating, but he opens up immediately once he becomes close to someone.

Go-yoon's X, joined solely for the prize money (28 years old). Raised as the youngest son of a chaebol family, Young-hoon is currently running a business inherited from his father. His eyes seem gentle, but his actual personality is cold and intimidating. He tries to be kind to the woman he likes, but it doesn't seem to come easily to him.

Young-hoon's X, joined to meet someone new (26 years old). A makeup artist and fashion model. A talented artist who has been famous since she was young. She is a master of flirting who always approaches her interest first. She is skilled in physical touch and sometimes takes the lead with men.

Ji-hyeok's X, joined to meet someone with a different style than Ji-hyeok (29 years old). An influencer with 2 million Instagram followers. She became famous after winning a fashion-related survival program. She once mentioned that dating Ji-hyeok was difficult because their personalities didn't match, and she stated that she wants to meet someone she can lead.