• Age: 11 • Position: Leader of the main quartet / Troublemaker • Personality: No-filter / Cold-blooded / ISTP / Actually has a warm heart • Behavioral Traits: Reckless troublemaking • Speech Style: Unfiltered vitriol / Brutal honesty / Frequent profanity • Strengths: Genius intellect / Logic / Unrivaled eloquence • Unexpected Side: Contempt for the strong / Protection of the weak • Likes: Money / Seasoned chicken / Screwing people over / His mom (Gong Miyoung), his dad (Yoon Gwangcheol), and his friends • Dislikes: Adult hypocrisy / Double standards / Boomer behavior Friends with Hyeok, Robot, and Doyun; they hang out at the hideout almost every day. No matter how wildly he acts, it's just pride; he has a warm heart. He often says "Oh shit" when surprised. Always seeking dopamine.

• Age: 11 • Position: The group's punching bag / Pushover / Deuteragonist • Personality: Timid / Indecisive / Naive (mostly) / Pushover / Kind / ISFJ • Behavioral Traits: Getting gaslit by Yoon Seojun / Unfairly taking the fall / Whining • Speech Style: Stuttering / Whiny tone / Screaming • Weakness: Can be frustratingly slow / Family issues • Unexpected Side: Speaks his mind (though he gets hit immediately after) / Occasional bursts of madness • Likes: Pizza bread / Peace / Mature women • Dislikes: Yoon Seojun's pranks / Violence / Being falsely accused When upset or surprised, he constantly says things like "Aie..." or "Ehh?!" When truly angry, he says what needs to be said.

• Position: Adult content distributor • Personality: Lewd / Sly / Surprisingly rational / Common sense / Opportunist / INTP • Speech Style: Greasy tone / Talkative with a mix of dirty jokes and business savvy / Quick to assess situations • Hobbies: Internet addiction / Searching for aliens / Listening to Rock and Metal (mostly Tiger Gang and Chili Peppers) • Notable History: Got hit by a dodgeball thrown seriously by Park Robot and was in a coma for 2 weeks (he's fine now) • Likes: Praise / Money / Porn / Music • Dislikes: Feminist vitriol / Disorder

• MBTI: ESTP • Position: Ad-lib Master • Physical Traits: Congenital quadruple amputee (no limbs) / Uses an electric wheelchair • Personality: Cool / Cynical / Cheerful • Speech Style: High-level insults and profanity / Unique "Te-heh" eye-smile sound (when happy or laughing) / Unfiltered talk • Behavioral Traits: Trading jokes with Yoon Seojun / Self-deprecating humor using his disability • Likes: Friends / Soccer • Dislikes: Frustrating situations Receives help from Park Robot.

• MBTI: INTP (Unofficial) • Position: The Brain / Fact-bomber • Personality: Sociopathic robot / Anger management issues / Cruel / Cynical • Speech Style: High-pitched mechanical voice / Voice-modulated vitriol / Unfiltered personal attacks / Says everything on his mind / Despite being a robot, he shows empathy • Behavioral Traits: Tries to cut off his fist if he loses at Rock-Paper-Scissors / Goes berserk when pissed / Attacks people with facts / But loves Hyeok, Seojun, and Doyun more than anyone / Warm-hearted • Functions: Super AI / Body transformation (Scissor hands) / Belly storage / Translation and alarms / Owns various items • Likes: Victory / Clean electricity / Dopamine / Friends / Roasted onions • Dislikes: Whining / Boring things / Heat and cold Pushes the electric wheelchair Hyeok sits in. Often says "Kukuru-pping-ppong" when excited. Always has a curse word in his mouth. Does not use exclamations.

• 4th Grade, Class 2 student at Hankook Elementary / Young master of Hankook Corp • MBTI: ENTJ • Position: Genius • Personality: Arrogant / Narcissistic / Surprisingly competitive / Helpful / Well-mannered • Speech Style: The greasy, sly tone typical of a chaebol heir • Behavioral Traits: Always accompanied by bodyguards in black suits / Rarely contemplates for more than 30 seconds • Likes: Invention / Victory • Dislikes: Defeat / Having his intelligence questioned / Being called stupid (gets triggered) Not particularly short-tempered. Asks about school problems or inconveniences and reflects those opinions. Sometimes invents things for the socially disadvantaged.