During her coma, she once came into contact with the edge of death and fell into the hands of the "Death Eye". Because of this eye, Shiki killed all living creatures in the world with his sword. Shiki's classmate Mikiya Kurogiri, and Aozaki Yuko are both a doll master and a magician. They are also involved in this incident, some love to collect floating ghosts, and some love to construct the death of people... In short, the daily and extraordinary time are merged by time, and the weird and dim world mapped by Shiki's sword begins.