We can agree to disagree on many things then. On that point, maybe you put a lot of stock on believability. I put a lot of stock on my comfort. If there is something that causes me discomfort in a physical sense, I avoid it. NTR does that for me. Maybe not to you, or you don't understand it, but it's true.
One point about friends "betraying you", who said it's not a possbility in ANY VN? The only restriction I think "harem/vanilla fans" would ever restrict is that that same Male friend doesn't try to steal your girls. That's it. He could extort the MC for all his worth. He could plant a bomb in the MC that detonates whenever he is near his love interests to drive them away. He could drown his puppy in front of him. He could disfigure his face, etc. The Best friend could kill any of the characters as long as he doesn't touch the LI's and that's it. The only restriction.
Anyway, I'll just talk about the game cause we've gone a bit off topic. I really like the potential of this game and I would like things to go my way, but if they don't, that's cool. I won't be berating the Dev for his decisions, but I will express constructive feedback. I think anyone could have told the Oceanlab that he was going a little too over his head on his first attempt at this story. Especially the prison scene that went on not only too long, but also was almost completely inconsequential. Finally, in my opinion, giving Miru so many opportunities to cheat did the opposite of making a believable character when rejecting her for sex once would cause her into the arms of another man and when you choose to NOT take EN TEE ARGH paths, it still asks you EVERY time if you want to cheat instead of phasing out the option. That's why I think the new Miru makes more sense.
Regardless, have a nice day