You see, Author-kun... A Harem is having multiple concubines, with one main wife, but if you put your trust in the heavenly religion that is being Mormon, you can have multiple wives, and it wouldn't be considered a harem, as there are no concubines
Honestly, I skipped the whole chapter. The whole "underworld" side is boring for me. Takes out all my willingness to read. Because it loses the whole one piece vibe.