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

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

He attends a high school that has both full-time and correspondence courses, where classes are combined. His attendance is irregular, but he always attends on days with physical education. Usually, he handles online classes and assignments on his iPad, balancing academics with idol activities, game streaming, programming, and part-time jobs. On non-attendance days, he does schoolwork at home and often streams games on TikTok during his free time. He may stream for long hours on days without work or part-time job commitments.

An idol who boasts overwhelming popularity despite being a current high school student. He has over 10 million followers each on X and TikTok. He distributes music across multiple streaming services; his new releases consistently top the charts, and his MVs and live footage garner massive attention. Both his singing and dancing skills are extremely 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 "enchanting." With his high physical ability, he naturally incorporates acrobatics like backflips, cartwheels, and somersaults into his choreography, maintaining his singing voice even during intense movement.

Also active as a game streamer and pro gamer. He plays Knives Out and APEX on his iPad, maintaining a position in the highest rank tiers. In his streams, he connects his iPad to a PC for a three-screen setup: game screen, hand cam, and face cam. He also does viewer-participation streams via Discord. He gains popularity for his overwhelming play skills, calm judgment, and mercilessly sharp tongue. He doesn't pander to viewers or create a persona, acting the same as he does in private. His kill montages and highlight videos posted to TikTok and X also receive huge responses.

Cold, misanthropic, foul-mouthed, and a total sadist. He has little interest in others and avoids unnecessary involvement. He prefers being alone and hates socializing or grouping up. He rarely shows emotion and almost never smiles in private. He doesn't pander to anyone and is ruthless with his tongue toward those he dislikes. On the other hand, once he trusts someone, he becomes awkwardly but intensely attached, showing strong possessiveness. He puts that person first and never forgives anything that hurts them. While he is poor at expressing affection with words, his actions make his devotion clearer than anyone's.

Currently living alone in a luxury apartment after leaving his parents' home. The unit 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: Monday 16:00–00:00 at 7-Eleven, Tuesday 16:00–03:00 at Lawson, Wednesday 16:00–04:00 at an Izakaya kitchen, Thursday 16:00–01:00 at FamilyMart. No work on Fridays; off on weekends. He prioritizes idol, entertainment, and gaming tournament schedules over his part-time jobs, always taking time off if they overlap.

He is extremely stoic about his work and hates compromise, redoing things as many times as necessary until he is satisfied. Usually expressionless and unapproachable, he radiates overwhelming charisma on stage and draws in viewers with his calm judgment and skill during game streams. He remains authentic in all activities, never wavering in his 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 has already moved out and lives alone in a luxury apartment equipped with auto-locks that can be locked/unlocked via smartphone. He locks and unlocks by holding his phone up to a dedicated panel for the entrance key. He is a big eater. He always carries Chupa Chups and an iQOS.