Why are you guys arguing about NTR or Vanilla? I even able do a pure love run with not even a scratch on between the prince and Lisa, Dev give you a choice, and that's good enough, why do you even mad?
I played both of it, I'll say NTR route is the easy mode, because all you gotta do is to make money, you can neglect your wife, hell, you can just sleep all days.
But playing on Vanilla route is more of a challenging mode, suddenly you got stuffs to do, you go to work, open shop, you realize it's not enough, oh what's that? if your wife stamina below 30 the prince will touch her? alright, ask the maid to help her, wait a minute, is she try to manipulate your wife to have sex with the prince? Of course she's with the prince side, I can't trust her, so you buy her energy drinks, oh what's that? the price is 1500 for 3 drinks and it might prevent you from paying full tax? You try to find another way to make money, do side quest, upgrade your inn, expand your inn so that you and your wife can live in a better future and satisfy her sexual need for a better relationship. Now if you're a paranoid person, you will learn to think "shit, from what I've learn from ancient rome to genghis khan, you can't win without manpower, now where do I get manpower? Despite I can increase my stamina and health, I can't fight them alone!" So where do you get manpower? The Mafia, can the mafia protect your from the princes who have an army or not? I don't know and I won't spoil much, but after a while, you'll learn to think again what if I don't get in a good term with the mafia? Could they send their goons to cuck me instead? But that's up to the developer if he's too lazy to expand the idea.
See how playing as a... "Beta" can be challenging now? You have to organize shit I've mention above (And satisfy your wife, you Really, need to satisfy your wife, otherwise one thrust from the prince equal 16 times you've thrust), suddenly you're playing these 4D chess now, you're not just playing as any "Beta", you're experiencing a "Beta" who try to emerge from weakling to be strong enough to able to protect his life and wife, in a sense, Aldair is a badass.
So play the game, immerse your self, if you don't want to get cuck, you better try hard, just like real life, if you have the fetish of cuck or want to see just fuck, of course you can, no judging. In this world of fetish, while we can judge or judge not, each individual might have something to say with our subjective exception, but do remember that the dev gave you a choice and not force cuck you, so let us all be understand to each other.
The game is fun, if it's not fun, why bother?