Divine bloomers were found on the Moon. An evil group BB group "Big bloomer group" seeks a way to make the whole world into a bloomer, and the international MIB "Men in Bloomer" organization monitors the subtle bloomer balance in the world. Their conflict becomes inevitable.
Tokiwa Ai is an ordinary girl who becomes chosen as a goddess of bloomers, and from now on she's a bloomers justice warrior!

[From vndbreview]