Well,it's a pity.This could happen in kind of MC's fantasy dream instead of "reality".I like both home and office harem,to choose between them really pains meA set harem like "Band Harem" etc. just with all girls will not happen as Andrealphus has already said. It also would be a nightmare wedding with the 420 vows needed ...
It may however be possible in the finished version to date all girls at the same time.