Honestly with how much it's talked about, you could pick a random page and probably find someone mentioning it.
But tl;dr is you get harassed endlessly by dumb foxpeople for bits of your soul through sex, and if you say no they attack you. If you want, you can free their leader/head-honcho or whatever (Kiyoko), who before being freed treats you like a spouse. Then you get her out and she treats you like a disgusting barbarian. Everyone else there treats you the same, save for a couple. You have children with her, but you don't really get a say in raising them and you're ripped away from most of their formative years only for you to be also treated like an absentee-father. When you weren't, you literally could not even attempt to see them. Yes, they are aware of this.
The meta-hate is every passage reads like someone speaking the entire Bee Movie script at you, every passage. They're stupidly long, and often are just verbose. So instead of "You and your children sit on a cliff's edge, enjoying a brief reprieve from the insanity that goes on in the Den." it would be written as "You find yourself walking beside your 5 children, as you all walk towards a cliff. It is unclear at the moment what you will do when you get there, but for now you are walking towards the edge. Your children look at you confused possibly because they are unsure of your intentions, but follow you regardless. You continuing walking, feeling the crunching dirt beneath your boots and marvel at how such simple things can often be lost when fighting for the fate of the world. You motion one child to sit at the edge, when they are seated, you motion another. When they have sat, yet another is told to sit. Once they have settled, you tell the next to sit. You guide your last child to sit with you, and you all look ahead. The sun is setting, casting a purplish-orange hue across the landscape. You all stare at it for quite some time. You are in awe of the majesty, but also that your children have not said a word."
You see how it starts okay, but then gets overtly obnoxious? Those are his better passages. The worse ones liken his Japan fanfic country as Japan and Savarra as the US pre WW2 or tell whole stories that have nothing to do with the champ