Is Kowaremono The Animation hentai?

OVA · 2015 · 1 episodes · Rx - Hentai

Hentai, School

Based on the manga by Yoshiron. A man's wife left him for another man, leaving him and her own daughter, Nanakura Kasumi, behind. Frustrated, one night he comes to his stepdaughter... (Source: AniDB)