I know this is not the popular opinion but I really don't want this to be a harem. I don't mind multiple girls liking MC, but if the MC decided to go out with multiple girls, it would break the immersion for me.
1. This world has a culture close to the real world and was set in the US. For me, it wouldn't make sense for a polygamous relationship to work while at the same time showing a deeper level of affection the MC should have towards his partner(s).
2. For me, the MC going out with multiple girls would just make the MC a shallow person. (Even if he got the girl(s) blessings to be with another girl, how would the conversation go?
Girl 1: I don't mind, I know you're not someone who can be tied down by just one woman.
MC: Thank you, I love you so much.
Even if the MC say something along this line, at that point, it was established that the MC didn't and wouldn't love the girl as much as she does him.
It would be like knowing your MC is not and will not be strong enough to commit the rest of his life to a single woman. For me as a reader it would be equivalent to finding out the MC has reached his limit in power going forward.)
But hey, in the end that's just me, I know a lot of readers would prefer harem ending, and truthfully I too like it when multiple women fall in love with MC (as long as it's not just love at first sight for ALL of them.). But in the context of this novel, that might be the limit of my personal tolerance, can't fathom the logic of MC being in a relationship with multiple women (with or without their blessings).
I'm sorry if I'm ranting, but this novel had great potential, character and story development wise, so I'm just doing my best in wishing that the MC wouldn't "go out" with multiple women.