Now and Then was never built/intended as a harem VN.
It centers on the MC & Carol and then adds Naomi - these two women are the original core of the story.
Other women encountered, like Sydney, Alice, Julie and Hanna all have their parts to play but there was never any intent by Kinderfeld, the dev, to make this a harem game.
When he created the Director's Cut, he added in paths so that, by making the right choices, you could end up with Julie or Hanna, but it is always at the expense of Carol and or Naomi.
The new paths were at the request of his supporters on Patreon, including me, as we wanted a chance to have a Julie ending (and some wanted the Hanna ending) even if it meant giving up Carol as part of that ending.
I'd have to check the walkthrough to identify which 3 some endings are possible, but 2 women is the extent of any ending - so a throuple versus a harem.
Cheers!!