God damn, I thought the hero is just looking down at Spiritfolks, turned out he's that bad. He's that racists yet was going to marry 8 spirits princesses, too!?
The wind spiritfolks should immediately alert other spiritfolks to call off the marriage. Hell, this is clearly could be a set up for Spiritfolks vs Humans since the humans seems to feel superior towards spiritfolks, especially by how the hero planned to punish spiritfolks servant by hanging them on his carriage.
The humans are lucky that Univas is a good boy, or else he would just use those wind spirits to make rasenshuriken. And his goody-two-shoes attitude sure is cheesy, but it works so well that all the spirits love him. Yet, he acknowledges that (by implying) he's being that kind to lower spirits due to him able to see them and other humans can't.