"Evil is not a human invention," Yuuko said simply. "A trip to Four Lions or the subway will find you relative evil but maybe its just definitions and societies. In our society youkai society would seem rather evil and depraved in many ways. And then there's bureaucracy, lawyers, and loan sharks in every society! That guarantees evil will thrive forever.

"And grading when willpower exists? For example," Yuuko leaned in with a cat's smile, "where does someone like I rate on your ideal scale?"