Sora no Otoshimono Bed Sheets

Description of Sora no Otoshimono: Tomoki Sakurai is a young man whose motto is "Peace and quiet is the best", but he finds it difficult when he has to put up with a next door neighbor with a killer karate chop, an eccentric scientist bent on discovering the "New World", and a borderline sadist. One day, while he was witnessing a strange anomaly in the sky, a UMA (Unidentified Mysterious Animal) falls from it. What falls from the sky is an Angeloid named Ikaros, who soon becomes Tomoki's servant.