On a school trip, Yogiri Takatou wakes to find a dragon tearing into his tour bus. A woman calling herself Sage had transported his class to another world, handing out powers to everyone except the sleeping stragglers left behind as bait. Stranded with classmate Tomochika Dannoura, Yogiri stays unsettlingly calm, because his concealed ability lets him will anything he chooses dead with a single thought.