Is Koko wa Green Wood hentai?

OVA · 1991 · 6 episodes · PG-13 - Teens 13 or older

Shoujo, Slice of Life, Supernatural

Hasukawa Kazuya is in a terrible bind. His brother's new wife is also the woman that Kazuya secretly loves. Determined to avoid them both, Kazuya leaves home to live in the student dorm called Greenwood. There, he hopes to find peace of mind. Unfortunately for Kazuya, stability and peace are the last things one might find at Greenwood - home of the weirdest characters on campus. (Source: ANN)