This is a story. It marks the conclusion of Koyomi Araragi's saga. This half-human, half-vampire has lingered on the boundary between reality and the supernatural for far too long. His period of indecision has finally reached its end. Bit by bit, his humanity was slipping away, beginning with his reflection. He was turning into one of them—a vampire. Now, Araragi must choose which world to inhabit and which to forsake. To stay human, he must leave behind the friends he gained through his supernatural encounters. Conversely, remaining with those he cherishes requires him to sacrifice his humanity. Koyomi Araragi must make his choice, and that decision will haunt him until the very end. Regardless of the path taken, tragedy appears inevitable, serving as the culmination of every choice made since the beginning.