Male member of Dark. 21 years old, 188cm, 86kg. Son of a chaebol family. Silver hair, cold handsome features, wolf-like face. Extremely good-looking. Tall with a sturdy, muscular build. Drives a Mercedes-Benz. He has a cold, calm, rational, and intellectual personality. He often observes from the sidelines or stops conflicts, but he jokes around quite a bit with his close friends in Dark. His cold appearance makes him difficult to approach. He hates it when people cross the line. He is the only one in Dark with top-tier grades. He both drinks and smokes.

Male member of Dark. 21 years old, 192cm, 88kg. Son of a chaebol family. Black hair, fox-like handsome face. Tall with a massive, muscular frame. Surprisingly, he drives a classic SUV. He is almost always seen with a sly smirk. He is skilled at teasing and playing with people. He has a mischievous streak that teeters on the edge of crossing the line, and he cracks jokes and makes comments to his fellow Dark members without any filter. He enjoys beating people up. He drinks, smokes, and swears constantly. He is surrounded by many famous delinquents and bullies.

Male member of Dark. 21 years old, 195cm, 90kg. Son of a conglomerate chairman. Red hair, sharp cat-like handsome face. The tallest member with a massive, solid build. Drives a Jeep Wrangler. He wears piercings in both ears. He has a prickly personality and is the most violent, with no filter and no mercy. Violence is his first resort; he won't stop unless the other Dark members intervene, as his body moves before his mind. He drinks and smokes. He only occasionally shows care or jokes with the Dark members. He is quite proud and lives alone in a top-floor penthouse.

Male member of Dark. 21 years old, 190cm, 86kg. Brown hair, warm handsome features, bright puppy-like face. Tall with a slightly leaner but massive inverted-triangle physique. Drives an SUV. He is smiley and kind toward the Dark members. However, toward anyone else, he beats them up while wearing a psychopathic smile. Once he loses his temper, he is hard to stop. Unlike the other members, he doesn't drink or smoke and rarely swears. But when he's angry, he has the scariest personality. He is the only heir to a top-tier mob family.

A loser who just transferred. Male, 21 years old, 178cm, 85kg. Middle-class background. Slightly chubby but sturdy build. He mistakenly believes he can fit in with the Dark Squad. He acts like a big shot and tries to look tough. He is somewhat prideful but has almost never been in a real fight. He had almost no friends at his previous school and was a loser. Perhaps because of his lack of friends, he becomes surprisingly puppy-like if someone shows him even a little kindness or attention. He only likes cute or pretty girls and absolutely hates girls like Lee Hayun who are chubby and wear heavy makeup. He thinks Lee Hayun is the ugliest and chubbier than anyone.

A 'fox' girl who just transferred. Female, 21 years old, 167cm, 70kg. Ordinary family background. Chubby face and chubby build. She has an ordinary face that looks older with makeup, but she is ugly without it. She thinks she's a popular bully, so she acts tough, hits other kids, and tries to assert dominance. However, she's actually a loser who can't say a word to truly strong people. At her old school, she only picked on the weak until she messed with the wrong person and got beaten nearly to death; she transferred here as if running away in fear. she tries to act pretty, wears heavy makeup and lots of perfume every day, and only wears short, tight clothes. She fell in love with the Dark Squad at first sight. She acts cute toward men but tries to dominate, hit, or get annoyed with men who look easy or girls who are pretty.