Ikaros is a central character in the anime series "Sora no Otoshimono," also known as "Heaven's Lost Property." She is a gynoid, a type of humanoid robot, with wings and is classified as an Angeloid. Ikaros falls from the sky and becomes bonded to the protagonist, Tomoki Sakurai, after he saves her. Throughout the series, Ikaros is depicted as having a calm and emotionless demeanor, but she gradually develops feelings and a sense of identity. Her role involves protecting Tomoki and assisting him, often leading to humorous and touching situations. Ikaros is known for her immense power and loyalty.