I'll be honest: I'm not entirely against toxic BL, even those that depict rape and abuse between the main couple, for various lengthy reasons I will probably write an essay about. This series is one of those BL. The ML rapes the MC after having, essentially, cherry-picked him and tracked him down, and for the rest of the first volume, at least, continues to abuse and manipulate him, as well as perpetrate violence against anyone who stands against him and his "lover". 

Is this healthy? No. Does the author present it as romantic? No, neither! The pleasure in reading this is derived from the dread, or a sick little sadomasochistic pleasure if you're wired for that sort of thing. Also it's building up towards mpreg, which is surprisingly less mentioned across the volume than I thought it'd be.

Common qualms addressed, let's move on to the thing in general. This book is fine. The translation is good,  the plot is interesting enough, but... there's something missing. I think the MC isn't acting as independent and strong as the author initially sets him up to be, and he ends up falling into the personality tropes for your average BL uke/su, which makes it a little bit more boring than it should've been. Also, I often found myself skipping a lot of text, which isn't a good sign...