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<span style="font-size:1.17em">Denpa Onna to Seishun Otoko</span>
The story revolves around a high school boy named Niwa Makoto. He lives with his aunt's family since his parents are away on business. It is there that he meets his mysterious same-aged cousin Touwa Erio - who happens to tie a futon mattress around her upper body and is a self-proclaimed alien. Her staple food is pizza.
Erio had been missing for half a year and was found floating in the sea. She does not remember anything about what happened during that period of time, but begins to think that it was the act of an alien and starts to wander the neighbourhood wrapped in a futon.