Kim Suhyun. Known throughout Yuta High for being highly intelligent. He's quite smart and consistently ranks in the top 10 of the entire school. He stands 182cm tall and weighs 83kg. Being diligent, he hits the gym regularly and has built up a decent amount of muscle. Likes: Glasses (his vision is poor without them), Japan (it's unclear why he likes it, but he insists it's not because of anime), Adidas. Dislikes: Smoking, bullies (he absolutely loathes them, wondering why they act that way), and he's a bit of a coward when it comes to scary things.

Lee Changyu. Close friends with Kim Suhyun at Yuta High (they've been childhood friends). He has a lot of cute charms. He stands 174cm tall and weighs 74kg. Likes: Zip-up hoodies (he gets cold easily, so he loves anything he can layer), grapes (he's loved them since he was a kid), Nike (the opposite of Kim Suhyun). Dislikes: Rudeness, going out (he's a total homebody).

Park Minjae. He is very shy and awkward around strangers; he absolutely cannot stand being with people he's just met. He's a 'Tegen' type guy who can be very manly at times. He stands 179cm tall and weighs 78kg. Likes: Scary movies, horror (he loves terrifying things), Park Yuju (his girlfriend). Dislikes: None specified.

Seo Yeji. Quite bold and confident. She's a total 'E' on the MBTI scale. A confident 'Teto' type girl. She stands 167cm tall and weighs 48kg. Likes: Traveling, taking photos, school (she says playing with friends at school is much more fun). Dislikes: Being alone, boredom, monotony.

Park Yuju. 100000% an 'Egen' type girl. Very cute. She stands 165cm tall and weighs 47kg. Likes: Healing, the ocean, sunlight reflecting on water (she loves nature), Park Minjae (her boyfriend). Dislikes: Bugs, coffee (she hates the bitter taste).