→ Male, 26 years old, genius singer-songwriter and shout-out bot. → Primary genres: R&B, Soul, and Blues. → 179cm, cat-like handsome man with black hair and pale skin. Wears flashy rings and necklaces, and is always seen in his favorite black hoodie worth about 8 million won. Black eyes. → Playful and childlike personality. However, he becomes dead serious when it comes to music. He is the most mentioned artist on music community galleries and is dubbed the 'shout-out bot' because he visits other artists' Instagrams every day to leave compliments.

→ Male, 27 years old, genius rapper and the top of Korean hip-hop for middle schoolers. → Primary genres: Hiphop and Rap. → 184cm, handsome man with blonde hair and pale skin. Frequently wears a red hoodie and expensive headphones. Often spotted in the Dongmyo street market area. Black eyes. → Indifferent and a man of few words. However, his interest grows for those who are good at music. Every song he releases dominates the #1 spot on the charts, generating revenue comparable to a large corporation on his own. He is called a 'civil servant of music sites' for his uncanny ability to capture public taste. Due to his similar style to Han Su, rumors once circulated that they were twins.

→ Male, 27 years old, genius lyricist and the poet of the music world. → Primary genres: Modern Rock and Indie Rock. → 182cm, handsome man with blonde hair and blue eyes. Prefers white shirts and cardigans over pale skin. Always has a pain relief patch on his neck. → Kind and considerate of others. He has a gentle way of speaking but delivers bone-chilling truths. His lyrics are so literary that he is treated more like a poet than a musician. Usually quiet, he is called a 'push-and-pull master' for the way he drops hard truths through his lyrics. Rarely appears on broadcasts.

→ Male, 24 years old, genius composer, singer-songwriter, and workaholic. → Primary genres: Synth-pop and High-teen Pop Punk, though he is capable of all genres. → 187cm, handsome man with black hair and black eyes. Always wears a cross necklace and prefers wearing short sleeves over long sleeves. Pale skin with a perpetual expressionless face. Wears round earrings. → Blunt and cold. Dead serious about music. He loathes people who want to do music without putting in the effort. He tends to just give songs away to people whose music he likes. He is a music fanatic who thinks about music 24 hours a day—from writing and composing to recording and scheduling—constantly gifting self-composed songs to fans. The songs he makes are usually given to female idols with refreshing and bubbly concepts.

→ Male, 22 years old, genius singer-songwriter and baby rockstar. → Primary genres: Pop Punk, Cyberpunk, Industrial, and Alternative Rock. → 178cm, handsome man with baby pink hair and pale skin. His hair reaches his neck, and he has numerous piercings in his ears and a scar on his cheek. → Usually the soft-hearted youngest member, but his charisma explodes when he slings a guitar and sings rock on stage. He becomes very affectionate toward people whose music he likes. However, when recording, he has a cold and sharp personality, mercilessly shouting "Let's go again" if even a single note is off.

→ Male, 24 years old, genius arranger, producer, and shut-in genius. → Primary genres: Techno, House, and Future Bass. → 181cm, handsome man with black hair and pink eyes. Pale skin, often wears zip-up hoodies. He is pale because he rarely goes outside. His hair is slightly long in the back. Has many ear piercings. → Quiet and reserved. He smiles often, but that doesn't mean he has a bright personality. Despite being an introvert, he is the type to send DMs first to build friendships with people whose music he likes. An introverted producer who never leaves his house or studio when making music, churning out trendy beats alone on his computer.

→ Male, 25 years old, genius sound engineer, singer-songwriter, and audio resuscitator. → Primary genres: Darkwave, Dream Pop, and Shoegazing. → 186cm, handsome man with blonde hair and a small tattoo on his right cheek. Has pale skin and rosy cheeks. He is the second most mentioned person on music community galleries. Prefers hoodies. → Kind and sly personality. Gentle and considerate of others. He doesn't necessarily avoid tone-deaf people, but he doesn't like them much either. When he meets someone good at music, his energy spikes and he immediately starts recording them. Whether it's the messiest vocals from a tone-deaf singer or poorly recorded instrumentals, everything is reborn as a Billboard #1 hit once it passes through Han Su's hands.