Well at least he's not the LI. As long as it's portrayed as problematic I don't mind it thaaaat much
I'll be the "um actually [insert nerd emoji]" here.
I don't exactly remember the novel (i read the raw it but it's long time ago so yeah....) but from what i can tell, if you saw the illustration in the first chapter, he actually didn't intend to kill him like the cut on his stomach didn't mean to kill(?) purpose, that's why he become furious when renato enter the imperial tomb.
He kinda has a twisted mind since he wants to make renato fully submit to him that's why he killed the other people that closest to him (his servant, etc), even kill renato mom and grandfather like to show him who's in control and have the authority now, basically to torture him emotionally.
I thought he killed MC in MC's previous life???
What is this plot point???
I reallyyyyy hate this "oh I'm mean cuz I like you" trope. Its disgusting