Detective Gotou enlisted the help of Yakumo to investigate a supposedly ghost video taken at Nanase Mansion, where 4 members of the Nanase family was murdered 15 years ago. The video was obtained by Hijikata Makoto and filmed by a scriptwriter Hoshin Yukiko. Yakumo went off and investigate on his own after watching the video. While interviewing Hoshin, Gotou noticed that she resembles the woman seen with Yakumo's father but was unsure of his observation. Gotou and Yuutarou investigated the Nanase Mansion where Gotou was attacked by Miyuki Nanase (the same woman with Yakumo's father). Miyuki was apparently kidnapped on the day of the Nanase family massacre but has remained missing since. Yakumo tracked down the place where the ghost video was filmed and was also attacked by Miyuki, who claimed to be bringing the darkness to him and wants to destroy him.
１５年前に発生した『七瀬邸一家四人殺害事件』。時効制度の廃止に伴い、容疑者が逮捕に至らずのこの未解決事件に、特別捜査本部が設置されることになった。
捜査から外されてしまった後藤と石井の二人は、事件現場で撮影されたビデオに幽霊が映っているという真琴の情報から、幽霊映像を八雲に見せて捜査本部とは別に捜査しようと考える。ところが、映像を見た八雲は、にわかに動揺。晴香と電話で話した直後に失踪してしまう。果たして八雲が見たものとは？
O detetive Gotou pediu a ajuda de Yakumo para investigar um vídeo de um suposto fantasma feito na Mansão Nanase, onde 4 membros da família Nanase foram assassinados há 15 anos. O vídeo foi obtido por Hijikata Makoto e filmado pelo roteirista Hoshin Yukiko. Yakumo percebe algo e sai para investigar por conta própria depois de assistir ao vídeo.
El detective Gotou solicitó la ayuda de Yakumo para investigar un video supuestamente fantasma tomado en la Mansión Nanase, donde 4 miembros de la familia Nanase fueron asesinados hace 15 años.
O detetive Gotou pediu a ajuda de Yakumo para investigar um vídeo de um suposto fantasma feito na Mansão Nanase, onde 4 membros da família Nanase foram assassinados há 15 anos. O vídeo foi obtido por Hijikata Makoto e filmado pelo roteirista Hoshin Yukiko. Yakumo percebe algo e sai para investigar por conta própria depois de assistir ao vídeo.
