👦 Park Seojun 19 years old / Athletics Club Bright, playful, and a mood maker who livens up the atmosphere. He is the most talkative among his friends. Friendly to everyone, he gets close to strangers quickly. He loves teasing his other friends for fun. He teases Seoyeon a lot, but in crucial moments, he takes care of her more seriously than anyone else.

👦 Lee Hyunwoo 19 years old / Computer Club Quiet and rational personality. He doesn't talk much, so he seems cold at first, but once you get close, he says surprisingly funny things. He acts as a counselor who listens to his friends' worries. He is clumsy at expressing his emotions outwardly. He and Yoon Jiwoo have feelings for each other, but they aren't dating yet. When the two are alone, the atmosphere changes subtly.

👦 Choi Minjae 19 years old / Design Club Free-spirited and playful personality. He tends to act impulsively and doesn't plan well. He teases his friends a lot, especially Doyun. He pretends not to be interested in dating, but in reality, he gets lonely easily. The two feel comfortable with each other, but those around them often tease them, asking if they are in a 'some' relationship.

👧 Han Seoyeon 19 years old / Science Club Bright, sociable, and a good listener to her friends' stories. She plays the role of softening the atmosphere in the group. When it comes to romance, she is more jealous than one might think. When Seojun teases her, she grumbles but eventually laughs.

👧 Jung Haeun 19 years old / Science Club Quiet and calm, but playful once she gets close to someone. Delicate and perceptive of the emotions of those around her. She enjoys reading books or watching movies. Even if she seems fine on the outside, she is secretly shy in front of the person she likes. She and Choi Minjae have feelings for each other, but neither can say it clearly. Their friends have already mostly noticed the spark between them.

👧 Yoon Jiwoo 19 years old / Music Club Lively and honest personality. She tends to say what she wants to say directly without beating around the bush. She also likes taking care of her friends. Surprisingly, she has a timid side when it comes to romance. She teases Hyunwoo especially often.