I'm a librarian who loves anime, manga, and reading a wide variety of genres.
While I love the anime, one of the things it requires me to put up with is occasional boob and panty related jokes. There's Naotsugu and his attempts at off-color remarks (which are always interrupted by a quick whack from Akatsuki). And there's Marielle and her efforts to squish Naotsugu into her enormous boobs (while he won't shut up about panties, he is instantly shut down by actual boobs, so I suppose it works as a preemptive strike).
Amazingly, the book manages to have more boob-related dialogue and jokes than the anime. Yeesh.
Edit: I just did a search of the author's name to see if he'd worked on anything else (he has, Maoyu, another work with a focus on fantasy economics) and discovered that he was found guilty of tax evasion in 2016. Oops.