I talked about it in discord some time ago actually. It's the curse, it has been gaining strength for hundred or so years and it corrupted the "head of the clan" so the curse would continue. The amusing thing, there was other way to cancel the curse that no one the present thought of. All they had to do was someone from the bloodline invite Tomas as a honoured guest for a night, and treat him well... Obviously her father wouldn't have done it but it wouldn't have needed to be him. Send him away for day, make Ayaka head of the house hold and let it go naturally. Done.So, it is a classicYou must be registered to see the links?
However, I hope, that there will be shed some light on her father past. If he was a different man back then, why he decided to send her into monastery? Or perhaps the decision was made after the change? Also, it seems, that this family have a harsh legacy (seeing, how their land was cursed), but again, in such case, her father seems to be different at first. Different enough, that lady Miki had feelings for him (and she, for sure had much more freedom in such regard, than any other noble because of her nature, even if it stayed hidden). That brings a question, if Ayaka path was set in stone or it could be different, if her father would resist the change to the worse?
And, perhaps a coincidence, but a good man gradually turning to the worse, in the shadow of coming alignment? Could it be somehow related? Was the change of his choice, or some powers were nudging, gently pushing him in that direction, step by step, over these years?
Miki isn't a noble in the traditional sense though. She and couple other dragons are there as imperial nobles due to the alliance they and the Emperor have (well oversimplifying things a bit but it gets the job done.) Yes it was her choice to marry Ayakas father back then. Granted, if she wants to do something there isn't exactly anyone strong enough to stop her as is...
And as why sending Ayaka to the monastery? Isn't that quite obvious though? Noble girl, who preferably needs to stay "pure" until she is offered to some lordling. What better place there would be than monastery where she would have kept away from temptations and taught to be a "proper" lady.