I had an intriguing thought the other day, which led me to an unexpected conclusion.
Way back when Hotaru and Altansarnai were revealed one of the suggestions for why those two champions were gender-swapped was that it would make the Champions in the core box match up with the Kami in the history. I quite liked it.
Recently, we have come to the conclusion that the Phoenix clan Champion is going to be Tsukune, not Ujimitsu. This runs contrary to the previous theory.
There are a couple of possible ways to reconcile these. Either the first theory is wrong, or our assumption of the gender of the Kami is wrong. Would people be happy with the idea of Shiba being Bayushi's twin sister rather than twin brother?
I realise that there are odd optics behind having a woman kneel to a man, but then again there is the concept of a woman promising to defend a man and his family.