Monogatari (物語,”Story”) is the general name for a series of Japanese light novels written by Japanese novelist Nisio Isin and illustrated by Taiwanese illustrator Vofan. Kodansha has published 20 novels since November 2006 under their Kodansha Box imprint, with at least two more novels planned. The story centers on Koyomi Araragi, a third-year high school student who survived a vampire attack, and finds himself helping some girls involved with all kinds of apparitions, deities, ghosts, mythological beasts, and spirits.
As the series progresses, Koyomi finds himself involved with other girls, each afflicted by different “oddities”, including the ghost of a child called Mayoi Hachikuji; his underclassman Suruga Kanbaru; Nadeko Sengoku, a friend of his sisters; his classmate Tsubasa Hanekawa; and his own younger sisters Karen and Tsukihi. To deal with the spectres, Koyomi relies on guidance from Oshino and, later, from Shinobu, the same vampire who attacked him, now with the appearance of an eight-year-old girl.