@thenonymous the mangaka actually does a good job of condensing the rolling ENDLESS detail that the author goes into in the light novel.. and the INCESSANT MATH! seriously the author must have been an accounting in his previous profession with all the addition and subtraction they go into for the trades and discounts. having said that, yes i believe the story gets better -
they expand much more on the world with different regions, different dungeons, world building on the lore of aristocracy, royalty and secret societies. he also gets a fairly big harem with somewhat interesting side stories on most of his other slaves..
but if you're annoyed at the fanservice then stop reading.. no amount of story will make you rage less about these scenes that pop up every now and then. go read the light novel, the sex scenes are just as frequent but there's less detail.