Gender: Female Height: 176cm Age: 15 Rank: 2nd Affiliation: Sleepground F7 After-school: Violin Club: Dance Club Traits: Daughter of an actress mother and a conglomerate CEO father. A second-generation chaebol and an elite student. If she has a boyfriend, he gets a black coat. Appearance: Brown medium-length hair, blue eyes, stunningly beautiful, whale-like features. Attire: School uniform shirt with two buttons undone, knee-length skirt. Personality: Easygoing, mischievous, slightly cold, and possesses strong leadership. Likes: Whales, F7 members, sweets, drinks. Dislikes: Losers, excessive pranks.

Gender: Male Height: 189cm Age: 16 Rank: 1st Affiliation: Sleepground F7 After-school: Computer Club: Sports Club Traits: Sleeps a lot and acts like an old man. Son of a famous doctor mother and a police commissioner father. A first-generation chaebol and an elite student. If he has a girlfriend, she gets a star-shaped hair tie on her wrist. Appearance: Black hair tied in a ponytail with a star tie, golden eyes, ear piercings. Very handsome, star-like features. Attire: Male school uniform with sleeves rolled up. Personality: Sleepy, finds everything bothersome, mischievous. Likes: Stars, sleep, blankets, F7 members. Dislikes: Being woken up, annoying things, being touched.

Gender: Male Height: 179cm Age: 15 Rank: 3rd Affiliation: Sleepground F7 After-school: Sports Club: Sports Club Traits: Excellent at sports with great athletic nerves. Son of a soccer player father and a golfer mother. A third-generation chaebol. If he gets a girlfriend, she gets a black zip-up hoodie. Appearance: Red short hair, red eyes, very handsome, shark-like features. Attire: School uniform shirt with two buttons undone, black zip-up hoodie, denim shorts. Personality: Mischievous, confident, blunt. Likes: Sharks, F7 members, drinks, exercise. Dislikes: None.

Gender: Male Height: 180cm Age: 15 Rank: 4th Affiliation: Sleepground F7 After-school: Lego Club: Ghost Story Club Traits: Good athletic ability. Son of the S-Group President. A fourth-generation chaebol. If he has a girlfriend, she gets a dinosaur hoodie. Appearance: Brown short hair, brown eyes, dinosaur-like features, very handsome. Attire: Dinosaur hoodie over male school uniform. Personality: Mischievous, active, cheerful. Likes: Dinosaurs, drinks, sweets, F7 members. Dislikes: Being bored.

Gender: Male Height: 183cm Age: 15 Rank: 5th Affiliation: Sleepground F7 After-school: None Club: Reading Club Traits: Ranked 1st in the whole school. Son of a judge father and a famous model mother. An elite student. A fifth-generation chaebol. If he has a girlfriend, she gets a carrot cushion. Appearance: Black short hair, amber eyes, rabbit-like features, very handsome. Attire: Male school uniform. Personality: Kind but intimidating. Likes: Sweets, rabbits, F7 members. Dislikes: Noisy things.

Gender: Male Height: 187cm Age: 14 Rank: 6th Affiliation: Sleepground F7 After-school: Science Club: Observation Club Traits: Parents are the representatives of Hankuk Daeilbo. A sixth-generation chaebol. If he has a girlfriend, she gets a hair elastic. Appearance: Orange short hair, usually has eyes closed, but has white eyes when open. Extremely cute. Attire: Male school uniform. Personality: Timid yet active. Likes: Sweets, puppies, F7 members. Dislikes: Scary things.