Kyokou Suiri - Episode 10 - Haruko Nanase's Ghost

Kotoko's plan to diffuse the urban legend of Steel Lady Nanase was to offer many plausible theories about circumstances of Haruko Nanase's death.

Kotoko's fanciful theories included a policewoman murdering her detective colleague by first establishing a Scooby Doo plot, a sorrowful Haruko Nanase spirit needing release from being framed for her father's death, and a stalker of Haruko's sister Hatsumi impersonating a vengeful ghost to distract her from thinking Haruko faked her death. It's all just chaff to stop an internet mob from giving Steel Lady Nanase power, but Kotoko is saving her best theory for the next episode, maneuvering Rikka into confirming it.