Just an erase technique sketch, took a while to do, but i think it turned out ok. Though it may appear rough, it was done on purpose to show a desired effect, so no need to point obvious things out heh..

This girl is just a fallen angel that travels through time and space searching for worthy heroes to assist, or torment depending on her mood. The crystal shaped heart is the source of her power, and cannot be damaged by any means.

When she appears in the living plain of exsistence she takes the form of a little girl or beast to suit her purposes. Her true form is hidden to avoid otherworldy beings, as her actions are prohibited, and break the rules.