These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Complete Monster: Genkaku has absolutely no problems with using his children as a way of getting revenge on the Emperor, even if it means sacrificing them.
Ho Yay: Seimei and Hiromasa. Seimei and Hiromasa. "Oh, I don't care about the world, but I'll save it if you really want me to."
Comes up in the sequel too. They really don't want each other to die.
Moral Event Horizon: Genkaku didn't seem all that disturbed when he offers his children up as sacrifices to the gods or when he kills his wife.