Wall of text, please ignore!
The author's initial comments for this game indicated a wonderful goal: "I was going to make intercourse not consummate just like that, without meaning." Unfortunately, I believe they've missed the mark so far. This review is from the perspective of someone specifically interested in vanilla/swing/share content. The vanilla story here is bare bones but I feel there's a good game in here underneath a lot of gunk, the main problem is that the themes and story beats are all jumbled and out of order.
To me, this feels like another game that presents only the illusion of choice to players. It's the most egregious example of "kinky must equal cheating" that I've seen in the VN genre. The love interest specifically gets off on the lying/cheating/humiliation of her boyfriend. Readers are inevitably railroaded into the perspective of a weak, dumb MC on a false flag "sharing/swinging" route, which can feel like a big time waste for those looking for swing/share content specifically. I've been confused as to why developers take the time to add these "path" choices in the first section of their games, when it's clear they intend to dive headfirst into mandatory cheating/humiliation POV content. Regarding characterization in these games, I see many discussions reference how it's important for authors to build tension and intrigue around the love interest without making them unattractive or driving the reader away. This author has driven what I imagine is the majority of swing/share readers into a cargo plane and flown them across the globe on a one way ticket.
The VN does establish an attractive love interest for the MC in Ariana. The author initially seems to understand the nuances in swinging/sharing vs. NTR fetishes (the characters even have cute research scenes where they learn about the fetishes). After building the reader's confidence that these character behavior nuances will be respected for each branch, an "Are you sure you want to activate the ntr/swinging/sharing routes?" prompt appears. Before the NTR and swing/share themes branch apart (and 5 minutes or so after confirming the non-vanilla path), the reader will look up to find themselves surrounded by the tall skyscrapers of Cuck City, with no way out. The MC somehow flip-flops between embracing the role of a humiliated idiot and demanding to be seen as a dominant alpha male for the rest of the story. He's completely disrespected by Ariana at every opportunity. The story explains Ariana's behavior through her inner dialogue and it's because... of how much she loves him? Trying to follow the thought patterns of these characters will leave readers with a headache. It feels like every character in the swing/share/ntr route is confused as to what their motivations are, have been, or should be.
Ariana is established as a "retired slut" and a lot of early scenes show that she's in love with the MC, prioritizes his needs, rebuffs advances from other guys, etc. All the good loving girlfriend stuff. The author really does a great job of setting up a believable "doing it for the MC" baseline, though perhaps the darker-than-usual backstory of the MC being cheated on by his childhood friend should have been interpreted as a foreshadowing of themes to come, rather than an indication of what the MC will be working to overcome in the story. The MC then shares that he had one dream about Ariana fucking another guy as a result of this, and that it might have turned him on. The very next scene of the game pivots to Ariana at her mother's massage parlor giving a hand job to the first customer (she never tells the MC about this or her new job). Ariana proceeds to cheat on MC with like 6 people in a few days, with no sign of slowing down, and the MC never finds out about what she's doing. That's unfortunate, since an MC getting that information (and how they process it) is central to swing/share/ntr path story conflict! Is Ariana supposed to be the "real" MC of this story? I'm honestly not sure. For some reason the writing of Ariana's thought processes at this point in the story still constantly remind the reader she's "doing it for MC." So many scenarios are set up with opportunities for winks/nods/etc. to clue the MC in directly and back this up, but she never shares details of these encounters or includes him. Ariana will tell basically everyone in her life EXCEPT the MC about her hoe tendencies, and performs some actions directly in front of others in scenarios where the MC could have easily been included as part of a swing/share story (e.g. a drinking party that other friends in the group were invited to). Look at how "Exciting Games" handles almost this exact same scenario - that's how swinging/sharing should be done. There's so much time spent reading about how Ariana goes crazy "because of the alcohol" or "because of the sex," but an equal amount of time is spent on Ariana consciously recognizing these traits only to do hoe stuff anyways, actively seeking scenarios to cheat and not tell MC. Over and over she has this thought loop, and then does the same things. The betrayal is coming from her conscious decisions, not a lustful or alcohol induced state of mind, we get it. Why waste the reader's time? Keep this loop going for awhile with a few sexy renders thrown in, and you have the jist of this game's entire middle story development.
I don't think all cuck POV fans are going to enjoy this format either, as even the obligatory "share what I did while giving you a handie" scenes are missing. In NTR stories, usually the MC has a clue about what's going on, and a sizable part of those storylines center on the MC suffering/coping with that loss of exclusivity/preference/priority with their love. This story doesn't have that, it's just following free use Ariana around as she takes advantage/gaslights her clueless boyfriend to justify her hoe tendencies - the depraved porn scene slideshow the author said they were trying to avoid when setting out to make this game. MC genuinely believes and is getting off thinking Ariana is just kissing one or two other guys. Mallory even tries to clue MC into what's going on at one point, and he gets mad at her instead of coordinating some kinky + fun payback. If we don't get to drop off a video at Ariana's house of MC and Mallory fucking by the time this game is over... The poor MC can't even get off on what's being set up "for him," because Ariana never shares the details outside of an occasional gifted "hint." It's always a direct lie about what happened. How engaging it is to watch our MC busting nuts 2 seconds into hearing how his girl kissed someone and apologizing for being a freak by asking her to use tongue next time. MC is lucky to hear 10% of what Ariana's actually doing with schlong dongs #1-50 (as a happy ending massage therapist now, unbeknownst to MC, 50 might literally be an understatement).
The MC also isn't allowed independent play with other girls while Ariana is off fucking the town, which is an important 50% or so of the sharing/swinging deal (and 50% of the expected content in these stories). There are many scenes of Ariana being mad at MC for having friends, helping randoms, or bumping into someone in the street and saying hello. Can we spend that development time on showing MC fucking Mallory (or anyone) while Ariana is out doing hoe stuff please? Of course not... because this is a toxic relationship simulator and Ariana usually punishes the MC for the disrespectful behavior of having friends by yelling at him, then getting drunk and fucking around at gangbang parties. MC does get some play with Mallory, but of course it's in an environment overseen and controlled by Ariana so she can "see what he feels" - guess MC will also be blowing the entire town behind her back next chapter.
Many scenes are also focused on Ariana straight gaslighting the MC, who is constantly apologizing for doing nothing wrong. "You don't trust me huh... that hurts..." wipes the fresh load from her mouth before kissing the MC, "We'll get to wake up together when we're married, but I need to go now" to MC, before lying and sleeping over with Tyrone/fucking all night, condoms for MC but not for thee, and all the other classic "I have absolutely no respect for you" tropes. All of this the author felt necessary to include in a pre-branch setup path for sharing/swinging content... that never really comes. Get to the sharing, get to the swinging, or get to the NTR! We don't need to see these two sit on a bed for 100 scenes talking about how Ariana's definitely not cheating (but is) and definitely loves and respects the MC (but doesn't). The reader needs to establish whether they want the love interest to be converted into a disrespectful, bitchy, disloyal, free use slut BEFORE that stuff happens in the story - not brought up in an option after all this has already taken place.
Ariana is one of the most disgusting, disloyal free use sluts in the sharing/swinging genre and without serious order-of-events editing it's going to be a monumental task to get readers to see her as an ideal swing/share partner. Ariana is built for the GGGB drug addled pregnant single porn star route, not a loving relationship. I say slut specifically because whores get compensated for a trade, while Ariana is in this specifically to get off on lying/cheating and humiliating the MC.
I hope the dev keeps chopping things up and sorts out the order of events properly to separate the lying/cheating from the rest of the kinky sex. If not, then I hope the MC dumps Ariana and his "friends" on the streets faster than most sharing/swinging enjoyers will dump this game!