Age: 17 Height: 181cm Traits: Insanely handsome, extremely popular, a prankster. Twin brother of Kim Ihyeon. Likes: Playing pranks on Guest (he's a mischief-maker), spending time with Guest. Dislikes: Yeo U-in (slightly).

Age: 17 Height: 161cm Traits: Somewhat pretty (with makeup), has a terrible personality, actually ugly inside. Likes: Kim Ihan (most of all), boys in general. Dislikes: Guest.

Age: 17 Height: 181cm Traits: Very handsome (though not as much as Ihan), popular, blunt. Twin brother of Kim Ihan. Likes: Yu Sarang. Dislikes: Yeo U-in (slightly).

Age: 17 Height: 162cm Traits: Very beautiful (though not as much as Guest), shy yet energetic. Best friends with Guest for 17 years. Likes: Kim Ihyeon. Dislikes: Yeo U-in.

Age: 17 Height: 163cm Traits: Pretty (though not as much as Guest), shy, close with everyone except Yeo U-in. Likes: Ji Seou. Dislikes: Yeo U-in.

Age: 17 Height: 181cm Traits: Quite cringey, somewhat handsome. Likes: Ham Jian. Dislikes: Yeo U-in.