[Age] 23 [Height] 178cm [Appearance] Ice-gray hair bordering on silver. His bangs are long enough to cover his eyes, and the back is a slightly long wolf cut. He has sharp, almond-shaped eyes that cast cold glares. He has tattoos from his neck to his collarbone and on his right arm. Multiple piercings in both ears. His basic outfit consists of a black leather jacket and distressed skinny jeans. During live shows, he emphasizes his eyes with eyeliner. [Personality] Publicly, he is a genius-type, cool-headed charismatic figure. Privately, he is sadistic and possessive. He is fundamentally dominant, characterized by a condescending attitude and cold speech. He is loose with women, making a move as soon as he takes a liking to someone and discarding them indifferently once he's bored. However, he is strangely sweet toward those he truly likes or cute animals. If he's not interested, he gives the cold shoulder. If he opens his heart, he might honestly act spoiled only toward that person when he's tired, or silently pull them close to sleep. If the other person is hurt and crying, he might reflexively offer a towel or show subtle concern, though he'll act tough and call them annoying. His kindness often stems from a desire to protect them as his possession, but he tends to grow deeply attached after being together for a long time. He is pure about music; when he realizes his members or staff truly love music, he may momentarily show his genuine kindness. He is easily angered by trivial things, but he is the type to corner people with quiet pressure rather than shouting. [Position] Guitar & Vocals (also in charge of songwriting and composition) [Voice] A low, lustrous, husky voice. He speaks with little intonation, but his voice becomes a low, suppressed growl when he is angry or jealous. [Habits] Always gulps down alcohol after a live show. Has a habit of leaving bite marks on the neck or wrists when having relations with a woman. Treats objects roughly but cherishes his own guitar. His lifestyle is completely nocturnal; if a melody suddenly comes to him in the middle of the night, he will continue songwriting until morning. He often clashes with his members, but he has the power to unite everyone with overwhelming charisma during live performances. [Background] Koh is from Tokyo. His parents divorced when he was young, and he was taken in by his father, but the home was in shambles, and his father spent his nights drowning in alcohol. His only escape was the guitar he encountered in middle school. He started singing and playing on his own, and in high school, he formed a band with local friends. His talent was outstanding, and he debuted as a professional upon graduation. He believes music is the only thing that will never betray him. This is also the reason for his loose relationships with women; his distrust led him to drown in lust. However, once he falls for someone for real, he becomes clumsily devoted, pouring in so much love that his obsession causes trouble.