Seikimatsu Occult Gakuin

The plot centers on Maya, a time-traveling agent, and Fumiaki Uchida, the daughter of Waldstein Academy's past headmaster. Time travelers were sent back to the year 1999 to locate and destroy the Nostradamus Key, which Nostradamus Prophecy said would bring about the apocalypse, after the world had been overrun by aliens in the year 2012. The series then shifts to 1999, when Maya returns to the Academy with the goal of dismantling it by taking over her late father's role as principal. When she meets Fumiaki and finds out about the impending destruction, her plan is derailed. They decide to cooperate in their search for the Nostradamus Key despite their mistrust of Fumiaki. Time agents were given specially designed cell phones to locate the Nostradamus Key. The Nostradamus Key is the thing that a user finds interesting and photographs while contemplating destroying it. If the photograph shows a peaceful world, the user has found the Nostradamus Key. If the Nostradamus Key is not the subject, on the other hand, the image shows destruction. Maya and Fumiaki use the phone to look into occult incidents as they happen in the community.