Constellation:

Character:

 A girl in her second year of high school. Chosen by the god called Hakuryu (White Dragon) to be his priestess, she is brought to a strange world where the Genji and the Heike wage war with one another. In order to return home, she must fight alongside the Genji against the Heike. Having obtained the power to cross time, she is determined to save those friends she loses in battle. She grew up with the Arikawa brothers, and until recently the three of them have virtually always been together.

Source from Wikipeida