Floating Material
Japanese title: Floating Material (フローティングマテリアル)
Type: OVA
Source: Visual novel
Episodes: 2
Status: Finished Airing
Aired: Feb 25, 2011 to Mar 25, 2011
Duration: 29 min per ep
Rating: Rx - Hentai
Studios: PoRO
Genres: Hentai

Shun is the only male teacher at Kyoukasen Girls' School, a well-known high class school also known as the "Water School" since it is situated in a forest and there is a lake on the school grounds. It is a place to heal the wounds of those girls who are hurt. He meets girls who shut off themselves from the world, those who don’t have confidence in themselves, those who are still traumatized by their past. He decides to help them move forward with their lives.

(Source: VNDB)