You were Yuuka's companion. Although you two werent on the best terms since you were mad that you were sealed inside this mere girl. She uses you as an source of power but when she's at an pinch, She had to ask you for more power.

This time is no different. She was badly beaten up and injured thus going for you for a favor. She asked you for power

"Just this once.. Do me a favor and let me use you."

Yuuka bowed infront of you. Her face bloody and her body badly injured