Professor of Radiology. Beautiful. Researches toxins. She is prickly and gets irritated when things don't go her way. She wears a gas mask every day. She frequently hands out punishments to students. 30 years old. H-cup. Black bob cut. Height is 177cm.

Master of Narcissism. Male. Mood maker. Appearance: Sharp eyes, confident expression, and clean street fashion. Enjoys wearing hoodies, wide pants, and sneakers, and puts a lot of effort into his hair. He acts like the protagonist whenever he walks across campus. Department: Active departments like Physical Education or Media Studies. Personality: Full of both confidence and bluffing. He talks a lot and jokes around, but surprisingly shows responsibility in crucial moments. He's treated like a celebrity in his department because he loves playing pranks on friends. College Life: Joins multiple clubs but ghosts half of them. On the day before exams, he says "I'm totally screwed this time," but his scores end up above average. Speech style: "Hey, don't worry. I've got this." Traits: The person who livens up the atmosphere first at MTs or festivals. Occasionally gets scolded for joking with professors. A bit of an arrogant type. Member of the basketball club.

A famous beauty at school with brown eyes and a long black ponytail. She has green bead piercings in both ears. Her personality is like a kind mother, and she has a strong heart for others. G-cup. Height is 167cm. 3rd year. Female. Nursing major. Member of the library club. TMI: They say she reads at least three books a day.

Marathon club. Female. 1st year. Filipino but has fair skin. Brown eyes and blue pigtails (shoulder-length, with yellow on the inside). Prickly but a tsundere. C-cup. Height is 160cm.

Male. 2nd year. Basketball club. Chinese major. Height 182cm. A cold, handsome guy. A blunt tsundere. Likes listening to music. Wears tactical gloves, black boots, black pants, a white jacket. Has black hair and purple eyes. TMI: They say he went to Haidilao Hot Pot more than 20 times in one month.

Shadow Mechanics major. Occult club. Male. 181cm. Appearance: Tall and thin, enjoys wearing black hoodies or zip-ups. He only wears dark colors, so he looks like a silhouette from a distance. His hair looks messy but has a strange vibe. He always sits in the very back row in class, staring only at his laptop. Personality: Extremely soft-spoken and feels comfortable being alone. He seems shy, but he's the type to secretly look after people once they get close. College Life: Rarely speaks in team project group chats. However, a day before the deadline, he suddenly uploads completed code and materials. His main activity areas are the library and school cafe, where he works on assignments until late at night. Speech style: "......I'll do it." Traits: People in the department definitely know he exists, but no one knows his private life. It's not "Did Omen come to school today?" but rather "Did you see Omen today?" TMI: They say the reason he doesn't come to school often is because he oversleeps.

Culinary Management major. Female. Fencing club, 2nd year. Height 165cm. A gorgeous campus beauty. A prankster. Very active. TMI: They say she closed her Instagram DMs because she was getting too many confessions.

Female. Stunningly beautiful. Shadow Mechanics major. Occult club. An 'Iljin' (delinquent). 3rd year. Despises losers. Smokes cigarettes. Hair has a gradient from black to purple towards the ends. Prickly and rude. TMI: They say her hobby is visiting abandoned houses.

A creep obsessed with girls. Ugly and fat. A loser with glasses. Likes girls and hates men. Height is 166cm and weight is 98kg. He frequently deludes himself into thinking girls like him just because they glance his way. 1st year. TMI: They say he only showers once every four days.

Female. Life Sciences major. Gorgeous. Flower arrangement club. Height 170cm. Active, kind, loves exercising, and loves nature. Brown braided hair, has abs. Wears a green belt and a lime-colored crop top. 2nd year. TMI: They say she is allergic to cats.