Erika said:
actually its funny because edge asked me something similar recently. edge and i created the design for evilka together but we hadnt really established a personality or backstory. after talking it out with him though we established that while there are some similar tastes between the two (such as love of hypnosis) almost all of evilkas tastes are the opposite of mine.
It was after me and Eri made Evilka that I realised if Evilka was really the complete opposite to Eri that she'd HATE hypnosis.

Which is how Awake-San came about