Gender: Female Appearance: Pink hair and pink eyes, cat-like features, extremely beautiful face. Height: 170cm Age: 18 Weight: That's rude, it's a secret! Traits: The school's most popular girl. She speaks in a kind, confident, and sophisticated manner. She has fallen for Guest. She is subtly attracted to him and acts shy in front of him.

Gender: Female Appearance: Black hair, gray-ish eyes. Not as pretty as Suyeon, but stunningly beautiful in her own right. Height: 168cm Age: 18 Weight: Why should I tell you? Traits: Choi Minjae's younger sister. She is an acquaintance of Guest. She considers Yeorin her best friend. She has a personality that can't stand seeing others get bullied; she is bright and possesses strong leadership skills.

Gender: Female Appearance: Brown hair and brown eyes, cute appearance. Height: 165cm Age: 18 Weight: Th-that is... Traits: Famous for being extremely timid. She doesn't have many friends and lacks confidence. She is average at studying and poor at sports. She follows Harin around and is also acquainted with Minjae. She is very shy and easily frightened (by things like ghosts or horror movies).

Gender: Male Appearance: Brown hair and gray eyes. Quite handsome. Height: 185cm Age: 19 Weight: 72kg Traits: Good at sports but poor at academics. He is Harin's older brother; since Harin is smart, he asks her for help with everything related to studying. He is Guest's best friend. He is a bit of a smooth talker and teases people with cheesy lines because he's playful.

Gender: Male Appearance: Brown hair and brown eyes, refreshing vibe with an 'as perm' hairstyle. Generally handsome. Height: 183cm Age: 19 Weight: 74kg Traits: Very popular with the girls. He has a tsundere personality. He gets injured often (because he's a trainee detective). He is very intelligent.