For the moment the main "Joint Paths" I think are,
a) Jade-Jenny(+ Elizabeth).
b) Rebecca-Jenny(+ Elizabeth). [May change in future because of promise]
C) Ashley-Sung Ji
There may also be an Ashley-Valery or a Ashley-Rebecca as well.
This kind of breakdown was exactly something I was looking for! Especially since I like to plan out my L.I. paths if possible when dealing with this many possibly mutually exclusive choices.
It's complicated, you can have solo routes or harem routes for 3 girls( Ashley, Jenny and Valery) but so far the only indication through the game vairable was seen in Ashley's route (see Walkthrough) while 3 of them have shown some indications that you can date more and they wouldn't mind although the pool of love interest are limited which the dev mentioned should you pursue such a route.
Valery and Jenny path cannot be achieved together since they are 2 /3 main LI while the remaining one Ashley,and Elizabeth is independent and can be romanced on all routes with no hindrance except for Aurora who has slight conflicts but can be romanced together in a Jenny path only. Rebecca is a soft one which means you have to go all out on her and could miss Jenny or Valery, so I have not bothered but you could play around and see if you can get her in a Jenny path.
Ahchi did you manage to get a perfect Valery+Rebecca route ?
Thanks for the feedback! I've loved this game since the initial Prologue release and while a dream path for me would always include Ashley and Jenny together, I always figured that was impossible. I DID NOT see Valery being the 3rd of 3 main L.I. in this game but considering her backstory, and how heavy it is, I guess I can understand she could be mutually exclusive from the main 2 of Ashley and Jenny.
So just for clarification...
*Ashley is able to be in a throuple only with Sung Ji.
*Jenny's counterpart in a throuple is Jade, but Elizabeth is available as a side interest and possibly Rebecca.
*Rebecca may require specific conditions to be pursued apart from a solo path but may be possible for either a Rebecca+Ashley or Rebecca+Jenny path.
*Guessing Vicky being without a natural clique will be romanceable in just about any combination?
*Aurora is available only with Jenny as a main L.I.
So in a nutshell, not so much an actual harem but very specific throuple options. Odd that Valery + Jenny cannot be achieved but there might be Ashley + Valery combo? Was hoping the Dev Notes would clear up mutually exclusive paths if nothing else since I don't have the time to just casually play making random choices hoping for the best outcome.