The main character has yet to be humiliated on the human and beast routes. The elf route is the only one where Kai has been powerless/humiliated.
Long Answer:
Since there seems to be some discourse about the routes and their themes, the following is my understanding of what to expect from them.
“Retribution” Beast Route:
Kai is joining the beasts and fighting against the humans who have waged unfair war on them. The beast people are open about sex, and this route is shaping up to be the closest to a harem/strong MC route. I would be wary of potential character deaths though.
“Compliance and Consent” Human
Kai is going along with the humans’ plans. He’s extremely likely to go through some form of corruption, and he’ll probably be complacent to/participate in morally questionable acts. I wouldn’t expect him to be put into situations where he would necessarily be humiliated or the reader would find him weak, but he doesn’t know what the humans of Eshyem are entirely up to, so there’s a good chance he may be part of a plan.
“Liberation” Elf. Political intrigue. The elf people are weak, un-unified, and scattered. Alliances have to be made, and those alliances have their own agendas. So Kai, and many of his associates, are probably going to be screwed over in some way, shape, or form. Though the biggest humiliation I’ve seen so far is that
If you don’t have a stomach for that you’re probably going to be yelling at your screen a lot. But there could be a happy ending.