* Based on a series of light novels written by Nishio Ishin and illustrated by Vofan.
During October of his third year in high school, Araragi Koyomi is introduced to a transfer student named Oshino Ougi by his underclassman Kanbaru Suruga. Ougi wants to ask Koyomi's opinion on a strange discovery of hers. She draws him a map of Naoetsu High School and, judging by it, there…