Maiku Kamishiro grew up in an orphanage with no history of his family or of his past. Left with only a childhood picture of himself and another person in front of a house, he believes that the other person in the picture is his long lost twin sister. Upon discovering his old home, two young girls show up on his doorstep one day both claiming to be his long lost sister.
Eiri works at his uncle's antique shop, and one day stumbles across a glass. Upon touching the glass, he receives visions from what he finds out to be a girl, Cossette, haunting the glass. She's been searching for over 250 years for someone who could see her, and now she needs his help.
A bunny alien, a maid-dominatrix, a cyborg, a magical girl, and a transforming super hero set out to vanquish a set of monsters to retrieve a set of magical Mahjong tiles known as the Pai - these ancient artifacts will grant the one who gathers them a wish, and these girls aren't going to let anything stand in their way - monsters, or each other!
