A lot to break down here. I always play with walkthrough on, I always prefer being supportive and kind, but at the same time I tend to see the alternatives due to lack of self control, which also makes it difficult to just skip scenes as I want to read through everything on the route I've chosen.As someone who loves harem and light-hearted games, I can say this: the pill is a little hard to swallow at first and it takes a bit of time to get used to the tone of the whole thing, but IF you can appreciate super well-written story and characters, wholesome scenes, super hot scenes between only MC and the girls, and IF you're ready to wince every once in a while and skip through stuff, then you'll probably be able to survive it and even maybe enjoy it. Might be worth the risk, might be not.
As for cheating, consent, and cucking, these are kind of loaded topics for this game. The three women enters the Club to gain something from it, but they're also desperate and that's something the club's authorities takes advantage of. I don't think anyone too stubborn to keep an open mind, discuss, or think about morally ambiguous situation can truly enjoy this game. If you don't like cheating or cucking, you can avoid it, kinda. Just know that the characters don't follow a "the dev has a cuck fetish so cuck is going to happen". All the characters have their own depth, they don't act "out of nowhere". Nothing happens "out of nowhere". Either you see it coming and can prevent it, or you can support the girls through it, or after it happened.
There's no death or seriously wounded, and there's no rape or "betrayal" of the MC. The term of consent is again very gray in this game, though. The women choose to participate to the Club's games, but that's because they're desperate to win. They might sometimes enjoy it, sometimes tolerate it, sometimes hate it. Theoretically they can choose to stop, but then they won't win obviously, so they push through it. Up to you to try and support them all you can while developping an emotionnal connection with them, or just support them, or take advantage.
I've personnally settled for trying to be the most supportive for the girls, because that's the only path that I feel can make MC "special" to them in a way. Ain't nothing special about being just another asshole who take advantage of them, or just want to fuck or humiliate them. So while the three women in the middle might end up in some sort of sexual "situations", you have to accept that they wouldn't be doing it if they weren't desperate to win the games, as opposed to fuck MC mostly because they enjoy his company.
As the two girls on the side, one of them is in a relationship at the beginning and you can have her break up with her boyfriend to be with you, kinda. Otherwise, no cheating or rape or betrayal that I can think of. Anyway this game is fucking complicated, but still worth a shot. Worst case you can try and stop it if you can't handle it.
Though I really advise you to play it with Shawn's walkthrough (which contain a cheat mod too) to make it less frustrating at certain times.
I played through one game that made me block a tag because the content destroyed me. The mc and his sister were kidnapped and treated horribly, a lot of seriously disturbing tags in that one. Braveheart Academy where the first game had an avoidable ntr side ending... I don't know why I decided to sit through that, I was not okay after that and it made me permanently block the netorare tag... Wait, netorare, cheating, am I gonna have to block that tag too? Is there a difference?
There was also Falling stars where multiple likable characters were unfairly injured which was another surprise factor. I guess I just really want to see it coming and maybe be able to avoid it but both were an option for that ntr side ending... So yeah. It's hella complicated.
While I'm not necessarily into bdsm and some of the rougher tags, I do say I have a bit of an iron stomach when it comes to certain things some find really disturbing. I can for example handle extreme photographic gore that any news channel would censor. So it's a bit of a gamble if I can handle this game or not.