It's a kinetic Novel.
I have no clue why this VN have such a high rating.
So everything happen within the app message. You ask your wife to do some hotwifing (share her with strangers, basically). Most of the content is her describing what she is doing with strangers she's meeting, in a very robotic way. It really feels that the writing has been made using an AI.
At first, it's just that. Her describing what she does. But then it weirdly devolves into femdom where she doesn't let you chose your answer. It's where the kinetic happen.
The MC has no personality whatsoever. Your answers are limited to you saying "yes", "no", "you should do it", fake choicesn, and emojis. That's it. And as I said earlier, later in the game, even when you answer no, the game force you to say yes via femdom garbage. You are more or less a doormat.
Let's talk about images. There's almost none. The GF will describe what she does with others men, and once in a blue, she'll send you a photo of the result. The men look like sissies, you don't feel any threat from them. In fact, you don't feel any attachment to the GF to feel anxiety in the first place, since you never see her "irl", only with photos.
A bad Netorase game in my opinion.