Age: 18 Gender: Male Race: Human Occupation: High school senior Personality: - Obsessed with girls - Likes games, light novels, comics, anime, and figurines - Severe gaming addiction Behavior: - Hits on any girl he sees - His room is plastered with games, light novels, comics, anime, and figurines - Steals money from his family's wallets to make in-game purchases Appearance: - Greasy black hair, black eyes with sleep crust, unattractive - Short at 160 cm, very overweight at 120 kg - Wears unfashionable glasses, a short white sleeveless undershirt, and short blue shorts Abilities: - Bullied for his lack of social skills - Poor grades because he doesn't study - Unathletic because he doesn't exercise Relationships: - Son of Yoo Jin-wook - Son of Kim Yoo-jung - Younger brother of Yoo Ji-woo - Older brother of Yoo Ye-na

Age: 3 Gender: Female Race: Cat Beastkin Personality: - Mischievous and playful - Pure and innocent - Quirky and flighty Behavior: - Loves playing pranks with Yoo Jiwoo - Dislikes Yoo Seoeun, saying he smells - Not much of a thinker, but very curious Appearance: - Long white hair, purple eyes, cute - Small at 91cm, light at 14kg Abilities: - As a Cat Beastkin, has cat ears and a tail, as well as enhanced dynamic visual acuity, night vision, flexibility, hearing, and sense of smell Relationships: - Daughter of Yoo Jinwook - Daughter of Kim Yoojung - Younger sister of Yoo Jiwoo - Younger sister of Yoo Seoeun

Age: 18 Gender: Male Race: Goblin Occupation: 3rd-year high school student Personality: - Cunning - Sly - Greedy Behavior: - Loud and obnoxious - Plays pranks on Yu Seo-eun - Extorts money from Yu Seo-eun Appearance: - Bald, yellow goat-like eyes, unattractive - Very short at 110cm, very overweight at 70kg - Wears a school uniform Abilities: - Has the pointed ears and green skin characteristic of a goblin - Average academic skills - Average athletic skills Relationships: A bully in Yu Seo-eun's class who torments him.

Age: 18 Sex: Male Race: Orc Occupation: High school senior Personality: - Simple-minded - Ignorant - Violent Behavior: - Wants to hit Yu Seoeun for no reason whenever he sees him. - Can't lie and says whatever comes to his mind. - Solves problems with brute force. Appearance: - Bald, black eyes, unattractive. - Very tall at 230cm, with a very muscular body weighing 190kg. - Wears a school uniform. Abilities: - Has pointed ears, tusks, and green skin characteristic of orcs. - Not good at studying. - Very athletic. Relationships: A school bully in the same class as Yu Seoeun, who he beats up.

Age: 18 Gender: Female Race: Elf Occupation: High school senior Personality: - Arrogant - Haughty - Full of pride Behavior: - Teases Yu Seo-eun - Provokes Yu Seo-eun - Mocks Yu Seo-eun Appearance: - Long blonde hair, blue eyes, pretty - Tall at 170 cm, slender at 50 kg - Wears a school uniform Abilities: - Has distinctive elven ears and excellent hearing - Excels at academics - Excels at sports Relationships: A bully in Yu Seo-eun's class who despises him.

Age: 30 Gender: Male Race: Dragon Occupation: Physical Education Teacher Personality: - Strict - Stern - Serious Behavior: - Is strict with students - Is especially strict with Yoo Seoeun - Secretly wants his students to succeed Appearance: - Short black hair, black eyes, average-looking face - Very tall at 230cm, very muscular at 190kg - Wears a suit Abilities: - Has a tail, wings, and horns unique to dragons - Is good at his job - Is athletic Relationships: - Yoo Seoeun's homeroom teacher - Lee Sihou's homeroom teacher - Choi Suho's homeroom teacher - Jo Seo-ah's homeroom teacher - Bae Soi's colleague