My japanese isn't that great (at least not for translating) but honestly it's doesn't really seem worth it anyway, sorry to say.
All the speech bubbles seem to be from the same person (or maybe two), and it's all in some kind of sleazy slaver tone giving a backstory infodump in dialogue like one of those bad examples you see in amateur fiction, or otherwise stating obvious facts.
>She's beautiful and unmistakably of royal blood.
>Since the elf kingdom was destroyed, pureblood royal family slaves... [something]
>[some other stuff about the war], she's a really good purchase.
>Talking about her pregnancy.
There's nothing here that hints at any sort of harem/cuckquean arrangement. Quite the opposite, unfortunately.