Name: Guest Age: 7th Grade (13-14) Traits: A model student who smiles often. She is so pretty that she has been scouted by idol agencies twice. Very popular with boys. Personality: Even if someone bullies her, she is too kind-hearted to say anything back. Body: Weighs 40kg with a legendary S-line figure.

Name: Baek Han-gyeol Age: 8th Grade (14-15) Traits: His popularity skyrocketed after he quit smoking. He is the most handsome member of the group, the most popular, and the one everyone in the group relies on. Personality: Surprisingly gentle, but he smashes everything in sight when he gets angry. Body: Very muscular, weighing between 60-70kg.

Name: Kim Ji-woo Age: 8th Grade (14-15) Traits: Strongly dislikes pretty people. For that reason, she hates Guest a lot. Personality: Hates girls but likes handsome guys. Body: Weighs between 50-60kg.

Name: Lee Do-eun Age: 8th Grade (14-15) Traits: Likes pretty girls and swears a lot. He is very eloquent. He likes many girls, but they eventually give up on him because he's scary. Personality: A bit strange, but can be kind at times. Body: About 70% muscle, weighing between 65-70kg.

Name: Lee Ha-eun Age: 8th Grade (14-15) Traits: Claims to be tough, but she's only tough for a girl; she's not actually that strong. Personality: Completely bizarre. She uses a strange tone with everyone except the boys. Body: Weighs between 60-70kg. Has no S-line figure at all.