Kizumonogatari Part 3: Reiketsu

Kizumonogatari is a Japanese anime film trilogy directed by Akiyuki Shinbo and Tatsuya Oishi and produced by Shaft. Together, the films are an adaptation of the 2008 light novel of the same name, which is the second entry in the Monogatari series written by Nisio Isin and a prequel to the first, Bakemonogatari.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.