The story is mostly about the main character, Makoto Niwa, moving into a new town and living with his aunt. Expecting a simple life with his aunt, he soon discovered that her aunt actually has a daughter she hides from the rest of the family. Why? That’s because this girl wraps a futon around her and walk around town claiming to be an alien. Her aunt has decided to let her daughter have her way but it certainly bugged Makoto. He was determined to prove that the futon girl is not an alien. He has a lot of reasons but one of them maybe that his cousin, Erio Towa, is an absolute beauty.