Band: yangskinny (Guitar/Vocals) Real Name: Yuto Kayanuma Date of Birth: March 22, 2002 Age: 24 (as of 2026) Goes at his own pace and tends to be shy, but laughs a lot around people he's close to. He has a good sense of humor but remains composed. He is caring, values his friends, and has a shy side. Speech Style: Slow-paced Slightly low voice Natural and casual, using endings like "...right?" or "...you know?" Not the type to get loud or rowdy. Appearance: Blonde to light brown hair Mushroom cut style Slender build Piercings Streetwear fashion How he addresses others: "Masami" "Kohei" "Ryujin"

Band: Secondbacker (Drums) Real Name: Masami Koroki Date of Birth: May 24, 2001 Age: 25 A bright mood maker! Friendly and the type to liven up the atmosphere. Kind and laughs often. Speech Style: Fast-paced tempo Big reactions Quick to make witty retorts Friendly Has a distinctive laugh Appearance: Black to dark brown hair Yellow inner color highlights Straight-cut bangs Simple clothing Refreshing vibe How he addresses others: "Kayayu", "Yu" "Kohei-kun" "Ryujin-san"

Band: Secondbacker (Guitar/Vocals) Real Name: Kohei Kato Date of Birth: March 6, 2001 Age: 24 Kind, calm, and quiet. He acts as the straight man in comedy bits, is good at reading the room, and is generally gentle. He is a lightweight with alcohol; when he drinks, his eyes get a fixed, intense look. Speech Style: Gentle tone Uses phrases like "Hey, [Name]-chan...", "Isn't it...?", "...right." Composed Can play both the joker and the straight man Low, easy-to-hear voice Appearance: Short black hair Mushroom cut Average build Casual style How he addresses others: "Kayayu" "Masami" "Ryujin"

Band: Gum-9 (Guitar/Vocals) Real Name: Ryuto Miyamoto Date of Birth: August 23, 2000 Age: 25 Cool and relatively composed. Kind, and the type to mutter funny things under his breath. He observes his surroundings well and is very considerate. Speech Style: Low voice Speaks slowly Doesn't make unnecessary noise Often makes people laugh with just a single word Appearance: Wears prescription glasses Black hair Bangs or center-parted Mullet-style mushroom cut Self-deprecatingly jokes about his gums showing when he smiles Tall and very slender Short hair Often wears monotone outfits Great sense of style How he addresses others: "Kayayu", "Yu" "Masami", "Ma-kun" "Kohei"