Umineko no Naku Koro ni: Beatrice

The series’ main antagonist, Beatrice is an Endless Witch who was once human; straying from the domain of mortals. Similar to demons, it is said that she appears when summoned and lends to that individual her power for a compensation of equivalent value. She has the ability to control Life and Death as well as repairing damaged objects if she so wishes.
Impressive cosplay! I really love her dress with all the laces, ribbons, and layers!