From the oracle Manga: It is later revealed that in order for Lead Crow to gain her powers, she killed Sailor Coronis, the senshi of her home planet, and stole her Sailor Crystal for Galaxia. Galaxia had promised her that she would eventually receive a Sailor Crystal of her own and become a true Sailor Soldier. Coronis is also the planet from which Phobos and Deimos originated. The Materials Collection states that she manipulates rot, likes shiny things, and that she is a sadist.