Is Sei Yariman Gakuen Enkou Nikki The Animation hentai?

OVA · 2013 · 1 episodes · Rx - Hentai

Hentai

Saiki Yasuo is a 45-year-old office worker. After 20 years of marriage, his wife asked for a divorce and left him. Now, depressed, he spends the nights drinking alone, until one night a girl from the St. Marian Academy approaches him looking for a client. (Source: VNDB)