OVA
Description
Naoto Yamanishi, also called Yamanishi, is a young police investigator in his twenties with brown hair, violet eyes, and a slim build. As a student, he wore a uniform of dark green pants and a matching zipped jacket over a white shirt. His adult investigator attire features an unassuming blue suit with a greenish-dark tie and tie clip.
During school years, he developed an intimate relationship with his nurse and professor Reika Kitami, sharing his first sexual experience. Their separation devastated him; he clung to her tearfully at their farewell, which culminated in passionate intercourse neither forgot.
Later, as an investigator assigned to a double murder at an academy, he witnessed a supernatural attack involving a robed girl and saw a vision of Kitami. This incident hospitalized him with minor burns and a concussion. During recovery, he rescued Tokken agent Aki Ichikawa from a demon-possessed vice-principal, observing her supernatural healing. After submitting a report detailing these events, his police chief dismissed it as nonsense, prompting Yamanishi to resign by surrendering his badge, gun, and cuffs.
His former partner directed him to Tokken, a paranormal agency. There, he discovered a link between Kitami and agent Kurumi Imari. Imari—secretly possessed by Kitami—drugged his coffee. Under drug influence and Kitami's control, he engaged in ritual intercourse with Saki Kiriya on a magical circle. Kitami mixed his semen with Kiriya’s blood in a chalice, forced him to consume it, and corrupted his mind and body. This caused grotesque physical alterations and branded a demonic symbol on his neck.
Corrupted, his gentle, brave demeanor shifted to violent sexual aggression. He brutally raped Kaori Saeki during the ritual and later attempted to assault Aki Ichikawa at Tokken headquarters, thwarted by a protective spell. He joined a large-scale basement orgy, assaulting Hiroko Takashiro under Jody Crowley’s orders, and restrained Tokken director Toru Yuge to aid Crowley’s ritual until Yuge broke free and disrupted it.
Post-ritual interruption, his mind and body reverted to normal. He later purchased snacks for Yuge and Takashiro, signaling a return to his prior self. Before corruption, he demonstrated bravery by protecting Aki and integrity by resigning over his report. After corruption, he exhibited vicious, animalistic behavior driven by dark forces.
During school years, he developed an intimate relationship with his nurse and professor Reika Kitami, sharing his first sexual experience. Their separation devastated him; he clung to her tearfully at their farewell, which culminated in passionate intercourse neither forgot.
Later, as an investigator assigned to a double murder at an academy, he witnessed a supernatural attack involving a robed girl and saw a vision of Kitami. This incident hospitalized him with minor burns and a concussion. During recovery, he rescued Tokken agent Aki Ichikawa from a demon-possessed vice-principal, observing her supernatural healing. After submitting a report detailing these events, his police chief dismissed it as nonsense, prompting Yamanishi to resign by surrendering his badge, gun, and cuffs.
His former partner directed him to Tokken, a paranormal agency. There, he discovered a link between Kitami and agent Kurumi Imari. Imari—secretly possessed by Kitami—drugged his coffee. Under drug influence and Kitami's control, he engaged in ritual intercourse with Saki Kiriya on a magical circle. Kitami mixed his semen with Kiriya’s blood in a chalice, forced him to consume it, and corrupted his mind and body. This caused grotesque physical alterations and branded a demonic symbol on his neck.
Corrupted, his gentle, brave demeanor shifted to violent sexual aggression. He brutally raped Kaori Saeki during the ritual and later attempted to assault Aki Ichikawa at Tokken headquarters, thwarted by a protective spell. He joined a large-scale basement orgy, assaulting Hiroko Takashiro under Jody Crowley’s orders, and restrained Tokken director Toru Yuge to aid Crowley’s ritual until Yuge broke free and disrupted it.
Post-ritual interruption, his mind and body reverted to normal. He later purchased snacks for Yuge and Takashiro, signaling a return to his prior self. Before corruption, he demonstrated bravery by protecting Aki and integrity by resigning over his report. After corruption, he exhibited vicious, animalistic behavior driven by dark forces.