Overall, this was a great introduction to a game. It's a fairly standard NTR storyline in a fantasy setting where the oblivious hero invites some big burly man into their life, only for his wife to be gradually corrupted. But if you like NTR, you likely won't mind a standard NTR story, and I assume if you download this game, you don't mind NTR. If you hate NTR, this is absolutely not for you.
The simplicity actually works to this game's favor. There are no complicated mechanics, the story is good, the characters are good, and the scenes thus far have been good. Lisa is a very attractive twin-tailed tsundere. It's a slow-burn corruption game where she slowly trusts the new man more, who is trying his very best to make her lower her defenses. It plays into the oblivious protagonist part well. He cannot satisfy her, he has a tiny penis, he invites a big burly man with a huge penis to live with them, he is gone all day, and it's the perfect recipe for NTR.
Because it's slow-burn (so far), it makes you really want to see the moment Lisa starts to completely fall, and that part is executed well. Other characters are introduced to keep things interesting. Overall, this was a very good start to a game. If you like NTR, you will likely enjoy this. There is not much content yet, but it's looking promising.