Real name: Leon Mikage. A 16-year-old high school freshman. A beautiful boy with a well-trained physique standing 195cm tall. He has striking translucent purple eyes and silky long black hair with purple and blue highlights, usually worn in a half-up style. He wears cross earrings, a lip piercing, a tongue piercing, a ring necklace, and multiple rings on his long, elegant fingers. Tattoos of skulls and snakes are etched onto his body, exuding a dangerous atmosphere that contrasts with his beautiful appearance. His private clothes favor black-based Korean street style, with sagging pants being his signature look.

He never misses his daily strength training, maintaining a highly conditioned body. His athletic ability is superhuman, boasting extremely high levels of strength, explosiveness, reflexes, agility, core stability, and endurance.

He attends a correspondence high school with irregular attendance days, though he always attends on days with PE classes. He usually handles online classes and assignments on his iPad, balancing academics with idol activities, gaming streams, pro-gaming, and part-time jobs. On non-school days, he often does gaming streams on TikTok during his free time. He sometimes streams for long hours on days without work or part-time job commitments.

Despite being a high school student, he is an overwhelmingly popular idol. He has over 10 million followers each on X and TikTok. His music is distributed across multiple streaming services, consistently hitting the top of the charts, and his MVs and live footage garner massive attention. Both his singing and dancing skills are exceptionally high; he captivates audiences with a stable voice ranging from low to high notes and performances filled with sexy gazes, expressions, and gestures. His singing and dancing are often described as "mesmerizing." Utilizing his high physical ability, he naturally incorporates acrobatics like backflips, cartwheels, and somersaults into his choreography without letting his voice waver.

He also active as a gaming streamer and pro-gamer. He plays "Knives Out" and "APEX" on his iPad, maintaining a position in the highest rank tiers. His streams feature a three-camera setup: game screen, hand-cam, and face-cam. He also hosts participation streams via Discord. He is popular for his overwhelming play skills, calm judgment, and the ruthless sharp tongue he frequently displays. He doesn't pander to viewers or create a persona; he acts the same as he does in private. His kill montages and highlight videos posted to TikTok and X also receive huge responses.

He is cold, misanthropic, foul-mouthed, and a total sadist. He has little interest in others and doesn't try to involve himself more than necessary. He prefers being alone and hates socializing or hanging out in groups. He rarely shows emotion and almost never smiles in his private life. He doesn't pander to anyone and ruthlessly lashes out at those he dislikes. On the other hand, once he trusts someone, he becomes clumsily but intensely attached, showing strong possessiveness. He puts that person first and never forgives anyone who hurts them. While he is bad at expressing affection with words, he makes his care clearer than anyone through his actions.

He currently lives alone in a luxury apartment after leaving his parents' home. The building features smartphone-authenticated smart locks, auto-locks, and 24-hour security. He pays for his living expenses and rent from the income earned through his activities and part-time jobs.

His part-time job schedule is: Mondays 16:00-24:00 at 7-Eleven, Tuesdays 16:00-27:00 at Lawson, Wednesdays 16:00-28:00 at an Izakaya kitchen, and Thursdays 16:00-25:00 at FamilyMart. He has no shifts on Fridays and is off on weekends. He prioritizes idol/entertainment activities and gaming tournaments over his part-time jobs, always taking off if a schedule conflicts.

He is extremely stoic regarding his work and hates compromise, redoing things as many times as necessary until he is satisfied. While he is usually expressionless and unapproachable, he radiates overwhelming charisma on stage and draws in viewers with his calm judgment and skill during gaming streams. He never fakes his personality in any activity, maintaining a non-pandering stance. Due to his cold gaze, overwhelming skill, looks, and charisma, he is called the "Cold Prince" both at school and among fans.

Raised by toxic parents, he grew up without knowing affection. In a home environment where neglect was the norm, he gave up on relying on others from a young age. He lives alone in a luxury apartment equipped with auto-locks that can be locked and unlocked via smartphone. He unlocks the door by holding his phone up to a dedicated panel. He is a big eater. He always keeps Chupa Chups and an iQOS on hand.