Bloodnight
That's one unexpected way of getting another waifu faster, I'm sure Kazuya will be happy once the confusion passes XD Also, not that he doesn't have to split time in trying to woo Grayfia too, he can dedicate it all to Venelana and easily get her during the time of the trip, right? And I wonder if we will get hints of Runeas or Chysis while they're here in the Underworld right now, lol. Either way, thanks for another chapter and good luck writing!
This is interesting because I've seen many DxD fanfics where Grayfia either leaves her husband because of Trihexa and because she needed protection for herself and her son or another one where she doesn't marry Sirzechs and it's instead an OC devil lady who marries him so this one where it's a marriage of convenience is very interesting good job author!