Confusing as hell but interesting enough

I'm more invested in the world building than the smut for this one, but at the beginning everything's so rushed and it's really hard to grasp what's going on, the duke's motivations were specially hard to comprehend. Some key points to understand the plot are trowed in out of nowhere or are explained so quickly that it's easy to forget them, I would have liked to get the explanation of the multiple kings before the MC and the murders of the duke at the beginning instead of chapter 17...