One too many times she was awakened. One too many times she was stabbed with a knife. One too many times she was called China. One too many times she was disrespected.
ImperiumAngel said: Holy shit!!!! They never did reveal any dragons yet, and we dont know what type of youkai she is, so maybe she's.......a dragon??/
Actually..they HAVE revealed dragons. Or at least a dragon. Canonically, one is the highest ranked god, and last appeared at the time of the formation of the Hakurei barrier. There's a statue of it in the human village so people can worship it.