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]

While at school, Taniyama Mai and her friends like to exchange ghost stories. Apparently, there is an abandoned school building on their campus that is the center of many ghost stories. During the story, they are interrupted by a mysterious male figure. The person turns out to be Shibuya Kazuya, a 17-year-old who is president of the Shibuya Psychic Research Company. He was called by the principal to investigate the stories surrounding the abandoned school building. The next day, on the way to school, Mai passes the school building in question. While examining a strange camera she spotted inside, she gets surprised by Kazuya's assistant. Unknowingly interfering with the investigation, Mai breaks the camera and Kazuya's assistant gets injured. Kazuya forcefully hires Mai in order to pay for the camera and replace his injured assistant. From that point on, Mai begins to learn about the paranormal world and the profession of ghost hunting. [Written by MAL Rewrite]

Shun Asanaga is a 15-year-old junior high school student with an optimistic and bright personality. One day, he finds a mysterious crystal in the office of his father, who is a scientist and businessman. When Shun touches it, the world becomes distorted, and he is sent into the world of Endra. Emilio, a prince of the kingdom of Endra, is nearing his 16th birthday and despises the reigning king, Delzain. Since Emilio is now at the age when he can inherit the throne, he takes up a weapon and attempts revenge. However, because Emilio is too weak, he is captured by Delzain and put in prison. When Emilio is in grief, the wall of his cell becomes distorted and Shun appears from there with two goals: return to his own world, and complete Emilio's revenge. What future lies ahead for the two boys trying to survive in Endra, yet raised in two different worlds? (Source: MAL News)

Poor Shinichirou Asano has the worst of luck. His parents abandoned him and ran off to Europe. If that isn't bad enough on its own, they barely left him any money to take care of himself. In order to pay rent and keep a roof over his head, he has to work. Unfortunately, he was just fired from his last job and as a high school student, he doesn't have many other prospects. One evening, he's attacked by a centipede monster on his way home. Shinichirou is saved by a mysterious girl with a bow and arrow, who he later discovers is Sakuya Shimazu, a beautiful student who attends his school. But when he later helps an injured girl, he discovers two things. First, the injured girl isn't human at all but rather a nekomata, a two-tailed demon cat. And second, Sakuya comes from a family of exorcists, who've protected humanity from rogue monsters and spirits for generations. Because Shinichirou was responsible for releasing the nekomata, Sakuya enlists his help in recapturing the demon, but that's just the beginning of Shinichirou's relationship with Sakuya. It turns out the Shimazu family needs a housekeeper and it just so happens that Shinichirou excels at cooking and likes to clean! It may not be his dream job, but if it pays the rent and puts food on the table...