Reiji Amaha, a 27-year-old male born May 14, stands 1.82 meters tall with striking green hair and vivid orange eyes, complemented by blood type A. As a member of the ROCK DOWN unit in the VAZZROCK project, he navigates acting, modeling, and music, building on a foundation of childhood acting and modeling that now prioritizes dynamic acting roles.

He cultivates a self-proclaimed individualist identity, carefully guarding personal boundaries while revealing an earnest, caring core beneath. His relationship with Ayumu Tachibana transformed from early clashes into a spirited rivalry fueled by mutual respect and collaborative growth. Their dynamic balances Ayumu’s disciplined, health-focused demeanor against Reiji’s flexible, solution-driven mindset.

Musically, Reiji contributes solo and duet tracks like "Sugarpot・Rhapsody" and "cRAZY night," alongside drama tracks delving into interpersonal tensions and camaraderie. His work frequently weaves themes of self-improvement and playful competition. Paired narrative arcs in anime projects further spotlight his collaborative spirit, emphasizing interactions with unit peers.

His feline companion, Rock, ties symbolically to the ROCK DOWN unit, reflecting themes of relaxed bonding and teamwork. Active in stage plays, music events, and varied entertainment ventures, Reiji’s career exemplifies versatility, anchored by a commitment to multifaceted artistic expression.