OVA
Description
Yakumo Fujii, a teenage student, is thrust into a world of supernatural intrigue after crossing paths with Pai, the sole survivor of the Sanjiyan Unkara—a race of three-eyed immortals. His life shifts when he inherits a mission from his late archaeologist father, who once met Pai in Tibet while researching Sanjiyan myths and pledged to help her attain humanity. Bound by his father’s final request, Yakumo intervenes in a Tokyo altercation where Pai’s possessions are stolen, triggering a clash with her demonic ally Takuhi. Mortally wounded, Yakumo is saved only when Pai fuses his soul with hers, binding him as her Wu—an immortal servant tied to her survival. This bond grants him rapid regeneration and immunity to permanent death, though pain and injury persist as relentless reminders of his fragile immortality.
Now linked to Pai’s fate, Yakumo commits to aiding her search for the Ningen no Zō, an artifact capable of transforming her into a human. His resolve stems not only from filial duty but also an evolving emotional connection. Their quest draws adversaries, including devotees of the imprisoned demon god Kaiyanwang, forcing Yakumo to shield Pai at all costs—her demise would spell his end.
Four years later, Pai vanishes without warning. Yakumo hones his skills and scours the globe before reuniting with her, only to find her memories erased. Undeterred, he guides her to the Sanjiyan homeland, confronting resurgent foes like Benares, a loyalist to Kaiyanwang. Amidst battles and Pai’s fractured identity, Yakumo adapts, balancing tactical ingenuity with unwavering dedication to his father’s oath.
Across his journey, Yakumo evolves from a skeptical youth into a tenacious guardian, wrestling with the paradox of immortality’s weight and his lingering humanity. His bond with Pai deepens, intertwining loyalty with unspoken affection, yet his focus stays fixed on their shared goal. The narrative probes his struggles: reconciling mortal roots with ageless existence, navigating ethical quandaries of undying life, and protecting a fragile hope that humanity—for both Pai and himself—might still lie within reach.
Now linked to Pai’s fate, Yakumo commits to aiding her search for the Ningen no Zō, an artifact capable of transforming her into a human. His resolve stems not only from filial duty but also an evolving emotional connection. Their quest draws adversaries, including devotees of the imprisoned demon god Kaiyanwang, forcing Yakumo to shield Pai at all costs—her demise would spell his end.
Four years later, Pai vanishes without warning. Yakumo hones his skills and scours the globe before reuniting with her, only to find her memories erased. Undeterred, he guides her to the Sanjiyan homeland, confronting resurgent foes like Benares, a loyalist to Kaiyanwang. Amidst battles and Pai’s fractured identity, Yakumo adapts, balancing tactical ingenuity with unwavering dedication to his father’s oath.
Across his journey, Yakumo evolves from a skeptical youth into a tenacious guardian, wrestling with the paradox of immortality’s weight and his lingering humanity. His bond with Pai deepens, intertwining loyalty with unspoken affection, yet his focus stays fixed on their shared goal. The narrative probes his struggles: reconciling mortal roots with ageless existence, navigating ethical quandaries of undying life, and protecting a fragile hope that humanity—for both Pai and himself—might still lie within reach.