PurpleBlaze
First and foremost thank you for the update. I hadn't played your V/KN before but anytime someone continues to develop their game is always greatly appreciated. I suspect that you've spent time addressing the complaints about the english, because what's here is far from the worst that can be found in many other VNs. Attractive LIs. Decent quality visuals. Writing could use some help, but again there are many other VNs on this site whose writing is weaker. So not a bad effort that shows promise to (based on earlier comments) get better.
What follows is intended as constructive criticism. As always this is your creation and I 100% support your absolute right to tell the story you intend in the fashion you intend.
You have and will continue to get very strong pushback against unavoidable "sharing" which, despite technical differences, may as well be NTR. The MC should have the option to say no to sharing any LI and the player should have the option to avoid seeing it. PERIOD. This is particularly true in the case of Monica.
Monica confesses to the MC that she is in love with him, and that is why she so very much wants an intimate relationship with him. This expression of love and desire, beyond the physical, is independent of her willingness for the MC to be with other women. The MC also expresses he love for her. Not his desire to have her as a fuck buddy, rather that he cares for her in an emotional way.
You, the developer, offer players no option to restrict or modify if she'll be sharing or the conditions surrounding her sharing. While there will always be "the no for of any NTR" crowd, you'd get a lot less pushback if you allowed the player some measure of control over just how that works.
No matter which characters are involved LIs, side girls, or female characters who are unavailable, I have NO desire to see them having sex with other characters.
For now, I look forward to where you take this story. Thank you for your hard work.