Juuzou Suzuya, born Rei Suzuya, serves as a Special Class Ghoul Investigator distinguished by an androgynous aesthetic—pale complexion, stark white hair accented by red clips shaped as Roman numerals, and self-modified stitches adorning his skin. Abducted in childhood by the ghoul Big Madam, he endured years of captivity marked by physical torment and psychological manipulation, including forced castration to preserve a feminine guise. Compelled to perform as "Juuzou," a Scrapper in the Ghoul Restaurant, he initially resisted violence but gradually shed moral boundaries, numbed to brutality. A CCG raid liberated him, though his feral instincts bred suspicion. Investigator Yukinori Shinohara intervened, steering him toward rehabilitation. At the CCG Junior Academy, false accusations of animal mutilation—crimes committed by peers—isolated him socially. Adopting "Juuzou Suzuya" at nineteen, he embraced his fractured identity, ascending to Rank 3 Investigator under Shinohara’s guidance. Early missions included probing the Binge Eater case and clashes with Aogiri Tree, where he overpowered Yamori, claiming the quinque "13’s Jason." The Anteiku Raid pivotalized his path: confronting Yoshimura and Eto, the One-Eyed Owl, left Shinohara comatose. Grief-stricken, Juuzou voiced regret, signaling a shift toward valuing human bonds. Post-timeskip, his evolution manifested physically—ebony hair, a prosthetic leg—and emotionally, as a composed Suzuya Squad leader who shielded subordinates like Tooru Mutsuki while maintaining lethal precision against ghouls. His CCG allegiance rooted in upholding Shinohara’s legacy, Juuzou often mistook his mentor’s compassion for endorsement of violence. Bonds with Haise Sasaki unveiled camaraderie, contrasting prior nihilism. Dubbed "The Next Arima" by Furuta, his unresolved trauma and fixation on Shinohara’s memory foreshadowed inner turmoil, particularly regarding Ken Kaneki. Reuniting with Big Madam during the Auction Operation, Juuzou framed her execution as duty, not revenge, acknowledging her abuse without personal vendetta. Subtle shifts in loyalty and ethics hinted at possible future alliances with ghouls. The Roman numeral "XX" etched into his hair later embodied judgment, mirroring his role in decisive battles and enduring tension between violent history and Shinohara’s lessons on empathy.