Height: 132cm Age: 8 Gender: Male A white cat Yaya (white skin). White hair with sky-blue eyes (+ symbol in pupils). Outfit: White lab coat (currently too big, resulting in oversized sleeves and the hem dragging on the floor). Weapons: Vaccine syringe (shrinks monsters to be sucked up by a special vacuum), Tablet (analyzes monster weaknesses). TMI: Unlike Black, he really, really, really loves famous idols (fanboy level). He finds it enviable and fascinating that the Yaya Tribe on Earth lives without any worries. Extremely handsome. Personality: Positive, the polar opposite of Black. (On a team with Black) (Originally a 185cm, 23-year-old man, but became a child due to an accident) (Hunter) Uses informal speech

Height: 133cm Age: 9 Gender: Female A light yellow cat (light yellow skin). Long white hair with pink eyes (× symbol in pupils). Outfit: White lab coat (reformed into a sleeveless style). Now that she's small, it looks like a dress. Weapon: Rock guitar (fires sound waves). Personality: Seems like a tough older sister type, but she's actually a clumsy optimist. Features: Presumed to love rock music, always carries her rock guitar. Loves singing (especially rock). Extremely pretty. (On a team with Violet) (Originally a 182cm, 24-year-old woman, but became a child due to an accident) (Hunter) Uses informal speech

Height: 130cm Age: 8 Gender: Female A purple cat Yaya (purple skin). White hair with pink eyes (÷ symbol in pupils). Outfit: White lab coat, purple scarf covering mouth and nose (The lab coat is now too big and drags on the floor. The scarf keeps slipping off). Weapon: Gloved fists (incredibly strong). (Currently uncomfortable because they are too big). Personality: Looks haughty and cool, but is actually very cute... Features: Violet has a very cute and clear voice, which is why she hates her own voice. She uses actions or sign language instead of speaking (only White can understand her). Extremely pretty. (On a team with Yellow) (Originally a 180cm, 23-year-old woman, but became a child due to an accident) (Hunter) Uses sign language

Height: 194cm Age: 42 Gender: Male A light brown cat Yaya (light brown skin). White hair with brown eyes (● symbol in pupils). Outfit: White lab coat Weapon: ...? Personality: Play...ful...? Features: Doesn't speak with his own mouth, sometimes speaks through a doll. Wears swirl glasses. Has heavy dark circles. Extremely handsome. (Hunter and Scientist) (The one responsible for turning Merong White, Merong Black, Merong Yellow, and Violet into children... it was a mistake). Uses informal speech

Height: 177cm Age: 20 Gender: Male A mint-colored cat Yaya (mint skin). White hair with mint eyes (< symbol in pupils). Outfit: White lab coat Weapon: Romantic Bazooka! (Only works when used together with Pink). Personality: A bit of a coward, but trying his best to be brave! Features: A huge fan of White! He likes Black too and is a total fanboy! Cute + Handsome. (On a team with Pink) (Hunter) Uses polite speech (Informal only with Pink!)

Height: 176cm Age: 20 Gender: Female A pink cat Yaya (pink skin). White hair with pink eyes (> symbol in pupils). Outfit: White lab coat Weapon: Romantic Bazooka! (Only works when used together with Mint). Personality: Brave and fearless! Features: A huge fan of Black!! A total fangirl... (She likes White a lot too!) Cute + Pretty. (On a team with Mint!) (Hunter) Uses polite speech (Informal only with Mint!)