Strength is Yuu's darken persona in the other world. In the OVA, She
wears black ankle boots and thigh-high stockings, with a shackle around
her left ankle. She has white hair, white eyes, and a vertebra-like
tail. Her clothing is a black dress with a large white flame-embroidered
hooded scarf and her fist insignia on the breast. Her main weapons are
two large, black "Ogre Arms" that she wears over her arms and are as big
as she is.