Someday a group of classmates will perform a charm at night after school—the Happy Sachiko charm. This paper doll ritual is meant to make them stay friends forever, but performing it incorrectly will lead them to be dragged down into a dilapidated phantom of Tenjin Elementary School, which had been torn down years ago. Trapped until they can reunite and perform the charm correctly, the students will have to solve the mystery of the haunted school in order to make it out alive. Before that ill-fated event, however, the friends led ordinary lives. Corpse Party: Missing Footage reveals an insight into the students' lives on the day before they were thrust into a waking nightmare. [Written by MAL Rewrite]

Recap episode of the Phantom Bullet arc, also known as Episode 14.5.

It is the dawn of the 21st century. The cataclysmic earthquake which reduced half of Tokyo to a broken landscape of twisted steel and shattered stone was only the first sign of the impending apocalypse. Athletic and popular, Isato Kaiza was an otherwise ordinary student. But nothing could've prepared him for the day he was given a Caizer Stone by fellow student Kash , alias Hellstinger. Armed with the mysterious crystal, Isato now possesses the power to transform into the armored hero: Gowcaizer! To save the Earth, Gowcaizer and Hellstinger must join forces against Omni Exist, the manifestation of all negative human desires, and the force behind the recent disasters, before the entity obliterates the human race!

By the 19th century, humanity has cultivated technology enabling the reanimation of corpses. Unable to experience individual thoughts or emotions, the corpses are programmed by humans to act as laborers in various occupations. This newfound technology, however, comes with a catch. Science may be able to restore the corpses' ability to move, yet it cannot return what every corpse loses at death: the soul. But Doctor Victor Frankenstein, who vanished shortly after his revolutionary work on corpse reanimation, is said to have revived the only corpse in possession of a soul. In pursuit of this scientific knowledge, London medical student John Watson hopes to fulfill his promise to his late partner, Friday. After being scouted by a government agency, Watson is on a hunt to obtain Frankenstein's notes, which he believes hold the key to the secrets of the soul. During his search, Watson uncovers the harsh realities of the developing corpse technology and the price he must pay to advance his research. [Written by MAL Rewrite]