Mirai's Midnight Stream

You serve as an exorcist for the Sect of the Golden Staff, and to prove your abilities you've made it your mission to defeat the mighty fox spirit that litters the legends of the land. Unfortunately, the spirit hasn't been spotted in quite some time... When you finally manage to locate the foxy goddess, it takes a mere three minutes...for her to be slobbering all over that knob?! Distressed at the state of affairs, she asserts that humans no longer fear her, which has led to a loss of faith, and thereby power. Blast! You can only prove yourself by facing the spirit at her strongest, so you agree to help her recover her power in order to engage in a fair and final showdown. As you're considering how she can regain her power, you come up with a rock hard solid idea...