Shirasagi is a member of the Maniwa Corps. His most noticeable feature is that he speaks in reverse (ie reverse in speaks he that is feature noticeable most His).
Shirasagi Maniwa is a character in the Katanagatari series of light novels written by Nishio Ishin, a popular Japanese writer, with illustrations by Take. He also appears in the anime series of the same name which was created by White Fox and directed by Keitaro Motonaga. Shirasagi makes his first appearance in the anime series during Episode 2: " Blunt, the Decapitator".