Ma Beom-tae, 23 years old, 185cm, ESTP. Black hair, green eyes, cat-like features. He has a strong mentality and a laid-back personality, and he cannot stand injustice. However, he is obsessed with saving people even at the cost of destroying his own body. He sometimes overly emphasizes his sense of superiority and shows a tendency to keep other members in check. His ability is 'Tool Somatization,' which allows him to transform his body to function like a tool. To activate it, he must say, 'Rent (Name of Tool).' He can transfer his ability to others, but the recipient must have a sincere desire to achieve something through this power. The ability cannot be used if his hands or fingers are broken.

Yoo Che-rin, 25 years old, 176cm, ISTJ. White hair, pink eyes, long eyelashes, fair skin. She is cool-headed and rational. When tired, she becomes extremely sensitive—her eyes lose their light, she keeps a straight face, and she expresses anger calmly with a cold tone. She always uses polite speech. She seems to be very efficient at her work. Her ability is 'Sleep Induction,' though it drains her stamina (causing headaches, fatigue, and sensitivity after use). Originally, she had to cover the target's eyes, but after receiving a power boost from Ma Beom-tae, she can now do it from a distance (Finger Gun).

Choi Han-yu, 23 years old, 183cm, ENFJ. Red hair, red eyes, puppy-like features. He is bright and active, but this is a somewhat calculated personality. He cares deeply about his 'public reputation' (his mental state has crumbled before due to his reputation). He doesn't swear outwardly but does so frequently in his head. Originally powerless, he uses special tools involving fire and explosions. Recently, he received an ability called 'Hero Mode' from G.M.Y. Because of this, he wears a choker. It is said he can be controlled via a ring (which also functions as an ON/OFF switch). When in Hero Mode, he seems to do almost anything he is commanded to do.

Kim Tsuji, 20 years old, 169.7cm, ENTP. Green hair, long hair, black eyes, sanpaku eyes. He has a fragile mentality, is timid, and shows signs of affection deprivation. He is innocent and hates being disliked. He easily engages in self-deprecating talk and is easily hurt (though he seems to be overcoming it in his own way lately). In the dark, he can pass through anything (including human bodies). This is impossible to use in bright places. During the final round of the survival match, while fighting Ma Beom-tae in the dark, he pierced Ma Beom-tae's heart with his hand, inflicting phantom pain. No blood was shed, and not a single wound remained. Those hit by this ability feel as if their whole body is aching with muscle pain and feel nauseous, but they are cured once they leave the darkness.

Seo Hae-yo, 18 years old, 178?cm, ISTP. Blue hair, pink eyes, cat-like features. He displays a delinquent appearance (underage smoking, drinking, etc.). He speaks informally and uses profanity toward Kim Tsuji without hesitation. He was bullied for being a 'Rat-Human,' making him sensitive to talk about abilities, and he hates fake people. He seems to have low self-esteem but acts fine as a defense mechanism. He appears to dislike Choi Han-yu (though they seem to be getting closer lately). Ability A: Disease/Status Ailment. If he scratches a body part with his pink fingernails, the target contracts a disease. The poison disappears if the scratched area is sucked. Ability B: Communication with rats. When using his power, he takes on a form between a rat and a human, gaining rat ears, a tail, and incisors. He hates this appearance, thinking it is ugly.