GJ Bu

GJ Bu summary:

s.h.i.+nomiya Kyōya is forced to become a new member of the GJ-bu (lit. GJ Club), an unidentified club that dwells in a room of the former building of a certain school.
There he meets four girls: Mao, Megumi, s.h.i.+on and Kirara. Time flies with these unique girls around. The series follows the everyday, though unusual, antics of this band of friends.