When cat-allergic Junpei Kosaka damages a statue of a cat deity, the cats don't just get his tongue, they put theirs in his mouth! Now cursed with the ability to understand felines, Junpei must perform one hundred great favors for cat-kind or face the fate of being turned into a cat himself! (Hey, would you want to spend the rest of your life licking your own backside?) Life quickly becomes a purrfect hell as every cat in the neighborhood starts sending Junpei their list of "requests." And if the kitties weren't already whipping him into a catatonic stupor, the women in his life are making things even worse. His sister, mom and the girl he has secret feelings for are all cat-crazy; the local Yakuza's daughter is playing cat and mouse; the local cat-owning monk's daughters are acting catty; and Junpei's childhood best friend is ready to use him as a scratching post! Get ready for the ultimate catfight on the road to purrdition in this cataclysmic complete collection of Nyan Koi!