TLDR: If you are into shotacon and without submissive protagonist get this.
The story starts with a mother having an affair with the MC's best friend and the MC going to his friends mother.
That's all the NTR you will get as far as the story goes.
There are multiple endings, and only one where it feels like the characters stay true to themselves and their feelings.
I would have liked this is the heroines had more of an active part into how they relationships are portrayed and a reverse of the tropes would have been preferable.
Otherwise this kind of starts as a revenge plot but you can more or less steer it to go one way or another.
There are also two point of view, both for a male and a female character, which was pretty interesting.