Kanako Yamazaki, a World War II ghost whose existence faded steadily over decades, resorted to siphoning energy from Sayoko Arashiyama to preserve herself and her closest companion, Yayoi Fushimi. Driven by desperation to evade oblivion, she eventually found sustenance through bonds with the living, notably Hideo Murata, whose connection revitalized her without causing harm.

Raised in deprivation, Kanako’s early struggles forged a sharp, guarded personality marked by resentment toward those of privilege, including Yayoi, Kaja Bergmann, and Arashi. Yet her bond with Yayoi—a wealthy yet guileless soul she met years prior—softened her edges, igniting a fierce loyalty. Kanako shielded Yayoi relentlessly, even resorting to violence when threats arose.

In their afterlife, the pair inhabited a crumbling mansion where Kanako’s reliance shifted from draining Arashi’s energy to a symbiotic bond with Hideo, a private investigator aiding their spectral struggles. This partnership eased her transition from parasitic survival to cautious collaboration.

Their history traced back to a wartime aircraft factory, where Kanako labored alongside Yayoi and other conscripted girls. A transformative moment unfolded during a blackout when Yayoi’s impromptu concert pierced the gloom, blending Kanako’s gritty resolve with Yayoi’s artistry. This shared ordeal forged an unbreakable bond that transcended death.

Kanako’s journey revealed gradual growth as she navigated her traumatic past and spectral limitations. Once hostile and isolated, she learned to trust, channeling her protective fervor into alliances with both living allies and spectral kin. Her evolution—from energy theft to cooperative resilience—underscored an enduring adaptability amid eternal trials.