I dont think there wil be harem route, or to be more exactly harem ending, maybe bad ending but not happy.
In my opinion .. First,
Laura, i dont think give a shit about MC, if is true about this drug adict ( in this moment is only speculative) prostitution come very close to this, because is only way to make money much more and very fast, and thinking about how give a head to MC for money and how acted after that is a classy high prostitute acting with a client. Then no chance, dont care enough for MC to be in his harem.
Second... Chelsea.... Hmmmm,
Is clear is in love , deep love with MC, and after years of waiting i dont think now when had her chance with MC wil go to share him, then no is not for harem.
Third .... Kayle ...( i leave Lexi for the last), Kay is something, i think is only one who will dont care if share MC with another girls, but because is Lexi in the midle i dont think will go to risk her relation with Lexi for fun, and plus she realy like MC.
Four ...... Sarah... i dont thhink , need more background about her for can figure what's in her mind.
And finaly Lexi, ok one thing, i hope you guy's dont forget how jealous can be Lexi, remember how firing the chinese waitress ? I dont think will accept to share MC, and shelive in true Love ( what kind movie she like the most ?)
And , yes be merciful with my very bad English, is not my native language so escuse my mistake.