TV-Series
Description
Born in 1900, Tsuzuki Asato faced severe childhood bullying due to his unusual purple eyes. Primarily raised by his older sister Ruka, she taught him gardening—with a focus on tulips and hydrangeas—dancing, and cooking, though he remained notably inept at cooking. His early life involved ostracization and physical harm from peers. The circumstances surrounding his parents are unknown, though Muraki Kazutaka's research later suggested Tsuzuki possessed non-human, potentially demonic ancestry, based on his eye color and physiological traits.

As a young adult, Tsuzuki endured an eight-year confinement in a mental hospital under the care of Muraki's grandfather. During this period, he survived without food, water, or sleep, demonstrating rapid regenerative healing that prevented successful suicide despite repeated attempts. These attempts culminated in death at age 26 via infected wrist wounds after prolonged self-inflicted injuries. The trauma of this confinement, coupled with implied guilt over accidentally causing multiple deaths prior to hospitalization, left deep psychological scars.

After death, Tsuzuki became a shinigami in the Summons Division of Meifu's Judgment Bureau, tasked with retrieving stray souls. Despite serving over 70 years—making him the division's oldest active employee aside from Chief Konoe—he earned the lowest salary due to perceived incompetence and a reputation as a slacker. His avoidance of paperwork, indulgence in sweets, and tendency to overspend on food contributed to this image. Tsuzuki struggled to retain partners until paired with Hisoka Kurosaki, a teenage shinigami whose empathy countered Tsuzuki's emotional volatility. Their partnership stabilized Tsuzuki, though he maintained rivalries with colleagues like Terazuma and endured unwanted advances from Hakushaku.

Tsuzuki's abilities centered on commanding twelve shikigami—spirit guardians based on the Twelve Heavenly Generals—far exceeding the typical shinigami's capacity to control two or three. Key shikigami included the Four Guardians: Byakko (white tiger, wind), Suzaku (phoenix, fire), Souryuu (azure dragon, water), and Genbu (tortoise-snake, earth). He also wielded ofuda (paper talisman) magic and exhibited extreme regenerative capabilities, allowing him to survive severe physical damage. These powers linked to pre-death traits and his ambiguous heritage.

Character development emerged through confrontations with Muraki, who weaponized Tsuzuki's past. Revelations about Tsuzuki's demonic blood and past atrocities triggered suicidal relapses, most severely during the Kyoto arc when he attempted self-immolation using his shikigami Touda's flames. Hisoka intervened, offering himself as Tsuzuki's reason to live. This moment cemented their bond, though Tsuzuki's trauma resurfaced later during a costume party where candle-induced hallucinations of Muraki nearly caused another breakdown. The Count, a supernatural ally, reassured him that enduring pain was human.

Tsuzuki's personality juxtaposed outward cheerfulness with profound inner turmoil. He presented as playful, food-obsessed, and childishly dramatic, yet concealed self-loathing and chronic heroism that compelled him to prioritize others' safety at his own expense. His protective instincts manifested fiercely when allies like Hisoka were threatened, though he refused to kill Muraki despite the doctor's crimes, believing his own existence caused more suffering. This complexity defined his relationships: genuine affection for Hisoka and Watari Yutaka, strained history with former partner Tatsumi Seiichiro, and combative dynamics with rivals.