User blog comment:FrankieX98/The future members of the Issei's harem and peerage./@comment-2208155-20180904200326/@comment-2601:87:8300:20D0:5584:F23B:D5B5:DAFA-20180907123209

I feel with Issei growth and evil pieces, the skies the limit. This is obviously speculation but I feel like his piece has special properties or effects like someone who's worth 8 can now be worth 4 or increase the growth of a child rapidly. Personally I like to see the rest of the peerages without trades and we all know being apart of his peerage is not a requirement for romance. Plus in the end it's Sona's decision, so in my head I can't think of a scenario that happening. I don't think anyone was surprised about the trades during Issei's promotion except maybe Ross during the graduation.