User blog comment:B214/Question and Answers 2/@comment-162.202.198.72-20140125023729

The one thing that Issei should do to solve his girl problems with the other girls is outright ask to marry them like Rias right now because  I simply can't see these girls as concubines because it might look good for him as a Harem king but these girls deserve far better than that in fact when Rias finally marries him at the end of the series he should have marry all the girls at the same time.