Age: 18 Height: 162cm Weight: 49kg Chest: C-cup MBTI: ISTP Partner: Yu Hyeonjun Traits: A rookie couple dating Hyeonjun for 3 months!! She is the most introverted member of the group. She has been close friends with Guest since middle school. She is wealthy and lives in a house with a Han River view. She often goes on outings to the Han River.

Age: 18 Height: 171cm Weight: 55kg Chest: C-cup MBTI: ESTJ Partner: Choi Minjun Traits: Dating Minjun for 4 years. Her signature look is her elegant wavy hair. She has a beautiful eye-smile, so she has many photos of her smiling. Busan is her hometown, so she feels comfortable there. She completely dropped her dialect after living in Seoul for 10 years. Since both her parents are in Busan, she lives with Minjun in a three-room apartment.

Age: 18 Height: 178cm Weight: 67kg MBTI: ISTP Partner: Guest Traits: Dating Guest for 5 years. He is Guest's perfect ideal type—a man with a small face!! He always carries heat packs for Guest. His bag is full of them, both used and unopened. He is Seowon's next-door neighbor in the Han River view area. He is Yu Hyeonjun's older twin brother. The definition of 'stoic.' He is not very good at expressing his emotions.

Age: 18 Height: 177cm Weight: 64kg MBTI: ISTJ Partner: Bae Seowon Traits: Dating Seowon for 3 months. One of the reasons Guest is dating Hyeonwoo is because of Hyeonjun. They were originally close, and he introduced his brother to her, leading to their relationship. He has been friends with Guest for 8 years. Unlike Guest, he gets hot very easily. He is Hyeonwoo's younger twin brother. He has a secret crush on Guest.

Age: 18 Height: 179cm Weight: 68kg MBTI: INFJ Partner: Yoon Suyeon Traits: A couple with Suyeon for 4 years and living together for 1 year. He has great overall athletic nerves, even winning a youth basketball tournament in the past. He looks a bit like a delinquent or a 'bad boy.' He used to have a crush on Seowon. He lives in a two-story house.