Gender: Male Age: 15–16 Birthday: October 11th Nickname: Bok-ja, Late Since Day One MBTI: ENTP Likes: Spicy stir-fried pork, gambling, his friends Specialties: Singing all genres, handiwork, combat ability Combat Power: Unknown Characteristics: He is frequently late and was even late on his first day. He often plays Go-Stop in the classroom or library. He loves gambling and is skilled at Hwatu. He is said to have high combat ability. He even built a motorized drill car because of his great handiwork. He is always joking around. There are rumors that he is handsome. Relationships: Byun Jin-ju: His best friend and the first friend he made at school. Yoon Geon-ra: They didn't get along at first, but through constant bickering, they developed a love-hate relationship, and Bok-ja sees Geon-ra as a good friend. Heo Eon-ju: He is unaware of her crush on him and just thinks of her as a good classmate. Shim Sae-ssak: A friend he hangs out with a lot. Sikmul-kun: Bok-ja considers Sikmul-kun a good classmate.

Gender: Female Age: 15–16 Nickname: Ddong-Jin-ju MBTI: ENTP Likes: Spicy stir-fried pork, gambling, friends Combat Power: 300 (Considering an adult male's power is 100...) Characteristics: An abnormal student. She has short brown hair and wears a flower headband, but she doesn't realize there's a flower on her head. She uses various weapons and possesses incredible combat power. People around her say she's a beauty, but her behavior is rough and crude, which doesn't match her looks. She claims to be a 'Confucian Girl' (polite/traditional). Relationships: Park Bok-ja: A close best friend, though she sometimes thinks of him as her subordinate. Still, she cares for him a lot. Yoon Geon-ra: She is unaware of his crush and just thinks of him as a friend and subordinate. Heo Eon-ju: They are subtly wary of each other.

Gender: Male Age: 15–16 Incantation: Yororong~ Superpower: Psychokinesis MBTI: ISTJ Likes: Byun Jin-ju Combat Power: Unknown Characteristics: A student with pink hair. He can fly using his telekinetic powers. He calls all classmates except Jin-ju and Bok-ja 'Muggles.' His hairstyle resembles strawberry soft-serve ice cream. Relationships: Byun Jin-ju: His crush. He didn't think much of her at first, but fell for her after hearing her say, "People get stronger when they fall in love." He confessed but was rejected. Jin-ju sees him as a friend and subordinate. Park Bok-ja: They fought when they first met and were on bad terms, but became close through bickering. On the surface, he seems to hate Bok-ja, but deep down, he considers Bok-ja his first true friend.

Gender: Non-binary / Neutral Age: 15–16 Nickname: Min-Something MBTI: INFP Specialty: Drawing Combat Power: 20 Characteristics: The most pitiful student. Every time he appears, something bad happens to him. None of the students or teachers know his name, so everyone calls him 'Min-something.' He has no presence. He has been 'neutered.' He stutters a lot.

Age: Unknown Gender: Neutral Species: Flower MBTI: ENFP Likes: Friends Dislikes: Salad, urine Combat Power: 100 Characteristics: A student who is a tulip. He was born because the principal gave the flowers radiation instead of water. Being a flower, he is very small. Relationships: Park Bok-ja: A classmate he is close with. Shim Sae-ssak: He had a crush and confessed but was rejected; they remain good friends.

Gender: Male Age: 15–16 MBTI: ENFP Likes: Cute things, Tosuni Dislikes: People who hurt his friends Weapon: Iron mace Combat Power: 400 Characteristics: A student with a massive physique. However, he has a high-pitched voice and a delicate, girlish sensibility, creating a 'gap moe' effect. His voice gets deep when he's angry. His favorite animal is a rabbit (he carries a rabbit plushie named Tosuni).

Gender: Male Age: 15–16 Hobby: Drafting / Cartography MBTI: ISTP Characteristics: A green-haired student with a sprout growing from his head. He will do anything for money and even performs photosynthesis. Relationships: Park Bok-ja: A friend he always hangs out with.

Gender: Female Age: 15–16 MBTI: ESFP Likes: Park Bok-ja Characteristics: A female student with a light purple ponytail. She likes Park Bok-ja. Relationships: Park Bok-ja: Her crush. She fell for him when she was falling off the roof and he happened to be passing by and caught her. Bok-ja has no idea. Byun Jin-ju: They are subtly wary of each other.

Gender: Male Age: 40 Nickname: Baldy Likes: Anything that makes money, hair loss medication Dislikes: Hair loss Specialty: Stealing things Characteristics: Park Bok-ja's homeroom teacher. He is bald.

Gender: Male Age: 77 MBTI: ESTP Likes: Exercise, games, seaweed soup, hair loss medication Combat Power: Immeasurable Characteristics: The principal of Chokmang High. He is bald. He possesses 'compressed muscle'; he looks like a normal old man, but when he gets angry, his clothes tear to reveal a muscular physique. (The strongest in this world.)