Keihime-BlackOps Masaki would be a fun concept, but nope
The actual answer is maybe a bit frustrating - she actually never committed to *one* of the winds!
In a way, and in part due to Crab goals at the start, she went all in on brokering for peace and balance - and in terms of 'who gets the throne', she was more worried about it being someone who could 'keep' that balance (and a decent position for the Crab) if they got there.
And that actually reflected on what I did for sumo! I lobbied with Raiden (supporting Tomaru), Tanikaze (supporting Tatsuya), Tsurugizan (supporting Tomaru), and Onomatsu (supporting Noriko).
Towards the end I was kind of trying to 'even the field' a bit, I guess... not that it worked too well
But yeah, all in all you could say I tried to keep her 'neutral' (like many of the Crab NPCs!), while at the same time contributing to different winds here and there.
The support to Aiko even gave Keihime some points!