looking for the name of a anime

[Cecildragon]

Ummm this is going to be hard, but i can't rember the name of a anime i had download. but it was about this guy in a school a really big school it had like the poplation of a City and it about some guy that has join some all girls club but all the girls either have huge boobs or no boobs. there was some kinda of yougrt slide in it. if any one knows help.

[SuntUrioN]

The anime your talking about is called Eiken ('http://www.animenfo.com/animetitle,1242,leguxx,eiken.html').
It's an OVA and Anbu subbed the first part.
You can get the torrent here ('http://anbudom.net/torrents/eiken_ova_-_episode_01__anbu_.avi.torrent')