This is a really fantastic game
Ker_, well done. You've crafted a very very strong plot and setting.
My only pain point was the large number of cheap sex scenes. With the whore Amelia, the slut police secretary, your boss, etc. IMO sex scenes are only so impactful if they feel earned. None of those felt earned, and there's a high degree of fantasy that those women would just spread their legs for you so easily.
I was actually really happy to see James, your "rival" who somehow becomes Zoe's partner. It would've been a really fun game to try to balance keep your role as an undercover cop and preventing James from getting too close to Zoe. From reading this big thread, it seems there was something plan there and it was dropped. I think it's a big missed opportunity to keep players engaged and fighting for true love. NTR has such a strong stigma, but I think in this particular game it would've been so fitting and maturely done. That you'd sacrifice true love for the mission, as a player.
I think 1-2 NTR bad ends with James + Zoe would've made the game more interesting. Right now it just seems you opened so many threads and plot lines without closing them. A higher degree of freedom would've made the game more enjoyable. Eg, don't hit James in the beginning leads to immediate happy end with Zoe. Getting diseases from bare-backing random whores.
Grace's scene with the mayor can hardly be considered "NTR". Firstly, you player knows nothing about this woman who's probably done this sort of work for the mob boss many times. Secondly, you're faithful to Zoe. Thirdly, why would any player sacrifice their mission and potentially life, for some random woman? Because she's pretty? Ridiculous.
I'm interested in your next game, hope you share more information about it soon. It seems you've planned the story already, but honestly if you have 10 love interests and easy (Yes|No) sex scenes again, it wouldn't be much of improvement.
I think you should focus on doing what you're good at: writing believable dialog and strong characters. And adding some real, nuanced consequences to the endings.