Epsilon from The Eminence in Shadow. Trained on Illustrious-XL. Tested at 0.8-1.0 strength.
Trigger word is "epsil0n" and "pointy ears, very long hair, sidelocks, aqua hair, twintails, purple eyes" is required.
Add "purple scarf, black bodysuit, gold trim, black gloves, black pants, thigh straps, black boots" for her typical look.