Despite the planned tags indicating a possible harem, unless dev changed his mind I don't see that happening or at least not a full harem. I have an excerpt of a post dev made several months back:
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So while we do not know which girls are willing to be in the MC's 'harem' or share him, it appears there are several that are confirmed mutually exclusive and according to dev's own words, it's a safe bet none of the main LIs MC works with will be happy or ok he is dating them simultaneously. While possible. it is heavily discouraged since it most certainly will not end well.
-I can confirm from the discord Alessa can be pursued with or without Vera. Alessa will ask if the MC wants to form a throuple with Vera, but Vera solo is NOT option. She is down for fun with the MC and him joining the relationship officially, but will not cheat on Alessa or leave her.
-There will
not be a point where the player gets to choose which girl they want to finish the game with. Instead, the choices they make throughout the story will determine that, funneling their routes to a point of a breakup. This may be due to the MC's misbehavior, missing a date, doing something wrong, and yes, even discovering another girl.
- An example of the above mentioned:
One of these things will already happen in Chapter 3, which actually already started in Chapter 2; Olivia's art class scene serves as a point to show the player that they are not free to do whatever they want, turns out Olivia actually knows Julia. Her charity event, if the player is dating Julia and decides to attend that event, it will already be the end for Olivia's route. Though, this time, you can still dodge that bullet, that won't happen every time.
-Alessa is much more open-minded than most of the other LIs. Despite still having feelings towards the MC, she’s exploring herself and will not lock you out of anyone else’s path for the time being.
Her only limit is her sister.
-Kimberly is afraid of losing the MC's attention, which leads her to accept the fact that you are in a different relationship with another LI, but she will fight tooth and nail for him.
- A possible Alessa/Vera/Kimberly path seems to be confirmed, though not sure for how long.
-Zeke has no idea about the MC and Keyla’s past, nor did he know they had a secret relationship in college. However, he was suspicious, which prompted him to propose to her as she was about to break up with him (this was meant to be told in Chapter 3, but I guess it’s fair to bring it up now anyways). Zeke never questioned any of them, as the only thought in his mind was that she could be developing feelings towards the MC, nothing more.
-Kimberly and Alessa (and Vera) are the ones fine with an open relationship, the other ones not so much.