The "Hentai" Prince and the Stony Cat (Japanese: 変態王子と笑わない猫。, Hepburn: Hentai Ōji to Warawanai Neko.; "The Pervert Prince and the Unsmiling Cat"), also known by the shorthand HenNeko (変猫。) and Towanai (とわない), is a Japanese light novel series written by Sou Sagara and illustrated by Kantoku. Media Factory published 13 volumes from October 2010 to March 2019. It was adapted into a manga series serialized in Monthly Comic Alive and a 12-episode anime television series by J.C.Staff, which aired from April to June 2013. The anime is licensed by Sentai Filmworks in North America. Source: Wikipedia (en)