Occult Academy - S01

The story follows Maya, the daughter of the former Headmaster of Waldstein Academy, and Fumiaki Uchida, a time traveling agent. In 2012, the world has been invaded by aliens, and time travelers are sent back to 1999 to find and destroy the Nostradamus Key, which the Nostradamus Prophecy foretold would bring about the apocalypse. The series then shifts to 1999, where Maya returns to the Academy intending to destroy it by taking her late father's place as principal. Her plan is interrupted when she meets Fumiaki and learns of the coming destruction. Though she distrusts Fumiaki, they make a pact to search for the Nostradamus Key. To find the Nostradamus Key, time agents are given specially made cell phones. When a user finds a suspicious object, they think of destroying it and take a photo. If the image shows a peaceful world, the object is the Nostradamus Key. If not, the photo shows destruction. Using the phone, Maya and Fumiaki investigate occult incidents as they happen around town.