A kid named Mani Sidra Crowbell is a normal student at Alterstone High. He also has an annoying friend whose name is Eliana Caeli Suri. But after finding a mysterious book with a page that tells them to go to The Celtic Manor, their life turns into a mystery. The doors shut behind them and are suspended in a mansion they know no history of. They find other students who're also victims of being trapped here. But this friendly peace here will break soon when no one expects it...