Atsuko "Akko" Fukune is a club dancer whose life takes a dangerous turn when men attempt to kidnap her, forcing her to seek protection from Mamiya Mugen, a detective specializing in unusual cases. This attack identifies her as one of six specific targets within a pattern of disappearances involving talented women. The motivation behind her targeting stems from an Egyptian occult ritual fused with scientific experimentation, aimed at resurrecting a secret underground leader of Japan.

Moving beyond a victim role, Akko becomes actively involved in the investigation and ensuing conflict. Her dynamic with Mugen is defined by antagonistic banter and tension. She accompanies Mugen and his servant Alucard into a climactic confrontation deep within a pyramid structure, where multiple national armies clash over the arcane resurrection secrets, escalating the conflict to an international level and shifting the narrative from detective mystery to supernatural adventure. Her storyline concludes within the single original video animation adaptation, with no documented appearances in sequels, films, or spin-offs.