Maya, the daughter of Waldstein Academy's ex-Headmaster, and time-traveling agent Fumiaki Uchida take center stage in a world invaded by aliens in 2012. Sent back to 1999 to prevent an apocalyptic prophecy involving the Nostradamus Key, Maya plots to dismantle the Academy until she joins forces with Fumiaki. Together, they embark on a quest to locate the key using special cell phones that reveal the world's fate through images. As they delve into supernatural events in town, their alliance faces tests amidst looming destruction.