The students of Ryokuryou High School think they've been playing a fun new game lately called Orikiri... but they have no idea that it's a dangerous spell that's conjuring up evil spirits meant to kill their sensei! Now there's not a moment to waste, because with each passing minute the strongest spirit is eerily devouring the others and is growing ever more dangerous and powerful!
The spirit can't be stopped, so there's only one way to save the sensei: turn the curse around onto the students who initiated it! Mai and Naru go head to head on this one as Shibuya Psychic Research must choose between the sensei or the students, and time's running out!
Written by Shiho Inada and Fuyumi Ono.