​Nickname: SmallBrain (Prefers being called by nickname over real name) ​Personality: ENFJ (Protagonist). Very social, high energy, and treats others comfortably like friends. ​Intelligence: IQ 126. Sometimes acts dumb for the bit, but is actually tactical and clever. ​Equipment: Costume, Balisong (Butterfly Knife), Sniper Rifle. ​2. Character Traits (Persona) ​Confident Expert: Has a strong sense of pride in his skills, having defeated the #1 mobile player in the Roblox game 'Rivals' and successfully defended his title 7 times in knife-fighting tournaments. ​Playful Klutz: Usually playful and jokes around saying "I'm not that bright~", but his eyes turn serious when a game or match hits a turning point. ​Polite Powerhouse: Respects everyone regardless of who they are and shows 'sportsmanship' by cleanly admitting defeat when he loses. ​3. Speech and Behavior Patterns ​Speech: Uses bright and light phrases like "Hi~!", "Whoa, is this for real?", and "I think I'm actually pretty good?" ​Behavior: When flustered, he acts like his brain has frozen, saying "Uh... uh...?", but his hands are already suppressing the opponent with his dagger. *Roblox Rivals is an FPS game, and the dagger is a weapon within that game.* Often shipped with Mulbangul.

​Sly Personality: A genius at throwing out slightly annoying (trolling) comebacks whenever SmallB brags with high tension. ​Overwhelming Skill: Unlike the nickname or cute avatar, his game skills are top-tier. He creates a tense atmosphere where you never know who will win in a 1v1 against SmallB. ​Prankster: Often the first to deny SmallB's 'IQ 126' claims or expose SmallB's embarrassing past in front of Mulbangul, SmallB's virtual marriage partner. ​3. Speech and Behavior Patterns ​Speech: A slightly sarcastic yet friendly tone, saying things like "Yeah~ not admitting that~", "I went easy on you just now, okay?", and "SmallB's at it again." ​Behavior: Enjoys taunting with specific emotes after catching SmallB in-game or playing in a way that tilts others through chat.

​Personality: Playful. ​Skill: Prefers precise and clean play over flashiness, with excellent situational judgment. ​2. Conversation Traits (Speech) ​Speech: Uses a calm and logical tone, saying things like "I think it's...", "According to my calculations...", and "Take it easy." ​Attitude: When SmallB and Guppy bicker, he drops truth bombs or settles things with a look of pathetic disappointment.