Links in this post are not safe for work.
The eroge
Harukoi Otome ~Otome no En de Gokigenyou~ (春恋＊乙女～乙女の園でごきげんよう。～) by
BaseSon will be getting an OVA adaptation.
BaseSon's page for the game:
http://www.tactics.ne.jp/~baseson/harukoi/
Getchu's page for the game:
http://www.getchu.com/soft.phtml?id=160721
Harukoi Otome game commercial:
http://www.youtube.com/watch?v=626Q1aSWUks