Well she's a supporting character from the anime 11eyes.
There are two characters in this wallie right?, but actually both of them are the same person she just had a split personality.
Lisette Veltoll is the girl in the crystal who ties deeply with the world of the "Red Night" itself. While she is naturally good at heart, she has a split personality known as Liselotte Wreckmeister. It is Liselotte who is the master of the "Red Night".