Rin's a lucky guy. Whether down the hall, next door, or from another realm, girls seem to be everywhere - and they all want Rin for themselves! He lives with Kaede, a beautiful sweetheart who pampers him constantly. Sia and Nerine have arrived from distant supernatural lands seeking his hand in marriage. Oh, and they both moved in next door! Now the competition for Rin's affections begins, and no matter which girl wins, there's no way Rin can lose!