Too many tags to keep track of with the oni/war hime/war oni shinkaisei-kan...I think that was actually the one I meant to use when comparing their wikis and posts. I think.
There, looks like the tail is the master for now.Ooh, it can fight on its own?What's up with Re-class?They've been fighting over who's the master and who's the servant all month.Looks like she's fighting with her tail?