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Yuusuke was just a normal high school boy until the lovely, haloed, and naked Noelle fell upon him one fateful day. From that point on, his life changed in ways he could never fathom, especially when Noelle's family, people from the demon world, arrived. Now, while his house and perception of reality are steadily being transformed, other forces are working to prevent Noelle from achieving her goal of becoming an angel for Yuusuke by using robots, catgirls and UFOs! Can Noelle become a real angel before she's used as a pawn in someone else's plans?
Papa, Mama, and Sue are juice-drinking vampires from the monster world – but there’s a problem! They’ve been kicked out for not being scary! The human world offers similar challenges, as Papa is still unable to scare 1000 humans – the price of being able to return to the monster world. Papa’s inventions never seem to work and Sue has unfortunately become enamored with a human boy named Kou; with these roadblocks and more in their way, will the Vampiyan family ever earn their way home?