Yokota Takumi

When the Pillars suddenly appear on Earth, threatening all life, it's only the act of the god Odin that offers humanity salvation. Providing a means of fighting back, he gives Earth the Valkyries, young female pilots with supernatural powers and spirit fighter planes. These skilled troublemakers, all young, risk their lives in a long-running war—but the final battle is fast…

Himeji Wakaba, a fifth-grade girl, can see things others cannot. As a result, she is scared by her surroundings, keeps her distance from others, and lives a lonely life. One day, she meet a mysterious soft, pink creature, Poo-chan, that cries Pupipoo! — and her life is changed from that day forward. Source: ANN