Story is very on-rails and doesn't make too much sense. I get that porn games run on porn logic, but the best games around here are the one's where the porn logic is at least tied to realistic outcomes and expectations. So I'm not entirely sure what people are talking about when they say this game is one of the best, but to each their own I suppose. I'm not a traditional NTR fan.
When you take your junk out of your hands, the most likely prognosis for the story is that Felix finds out, and leaves his lunatic wife. He outs her for having sexual relations with Zack, who earlier in the events was her student, which throws the entire academic standard out of the window. The other students in the class would inevitably end up forming a class action lawsuit against the college for unfair outcomes(this happens a lot IRL, by the way,) so Sophie ends up exposed, fired, socially outcast, and blacklisted from her profession. Zack is a narcissist, who will either go on to become a nobody, or his sporting prowess means he goes mainstream pro sports. If the former, he has far better options than some mid 30's mediocre looking (by in-universe anime standards) socially outcast and financially burdensome former college professor who will almost certainly cheat again (cheaters keep cheating, real world advice right here,) and will most likely become a gold digging toy boy who cheats on his rich wife. If the latter situation, it's the same but with supermodels. Regardless of how long it takes, be it another character in this game or a hypothetical post-game scenario, Zack will get bored of her, leave, Sophie ends up alone, broke, homeless, jobless, and with no hope for the future.
Meanwhile Felix has become a rather high ranking university professor and dean of...something(mathematics, wasn't it?), which supposedly, regardless of how it actually functioned, seems to have created a program that has been a success. He wouldn't want to stay near this place where his sociopathic ex wife tried ruining his life, and would receive many good job offers from elsewhere (and could blackmail his current boss into giving him glowing recommendations in exchange for not exposing the boss' role in the cheating scandal.) There he is most likely to meet some young student in her last year of college, and he uses the money he got to start a family and live a good life.
A lot of people think games like this are depressing, but in a roundabout way they are kind of hopeful, except when they are written like shit and make absolutely no sense (hopefully this one doesn't, but it already went for the magical big dick trope, so..) But at that point they're so bad that you can't even care. Terrible people like Sophie exist in the real world in large numbers, and there's a certain cathartic relief when these shitty people are given an opportunity to out themselves for what they are, and do so. I get it's fiction, but if we use our suspension of disbelief for a moment for a hypothetical future story point, it's good he found out what she was before they started a family. Blessing in disguise.
P.S:
Does anyone know any ntr games where the main character has a mental breakdown and gets justice on his cheating sociopath of a wife + her confederates, and then finds somebody better? My limited exposure to this genre makes me feel like there's 3 tired tropes on repeat with the same 2 endings over and over again(MC gets abandoned, or MC becomes a cuck and lives with being treated worse than a dog.) All these awful people getting what they deserve should always be an available option in games, even if it cuts the porn/story content short, if that's what the player wants. Good writing to me would be some of these husbands/boyfriends getting shocked back into reality and not letting their dehumanization and mistreatment stand.
All I want for christmas is a cosmic justice ending.