Binary Star (Otome)

When she was 7 years old, what Sorano Fuu (the protagonist) saw in her living room were the lifeless bodies of her beloved parents, who had died at the hands of an unknown culprit. Taken in by a group of people known as "Tenshi", Fuu asks them why her parents were killed. One of the Tenshi said to the young Fuu, "Your parents were "Dealers", who are people that sell "Hoshi". That is why they were killed." Her parents were criminal vendors of the illegal-to-sell, taboo Hoshi on a large scale. Thi...