He did , but unfortunately on that route Misaki siding with Aida after Masashi assault him. And he lose thanks to Aida is richer and got better connection and good lawyer. Misaki also almost reporting to police, but Aida pressure her and manipulating her because she didn't want Masashi know about her affair. She is naive and easily manipulated. IF she just report to police immedieately i think Masashi will understand. But what's on her mind was she sleeping with Aida, and she didn't want Masashi knew about it.
The fact that Aida could get away with the fact that he illegally raped and drugged someone when there's video tape evidence of his confession without any consequences just because he's rich is really unsettling and disturbing, you know? It really makes you wonder about our justice system.
Judge: Oh yeah, were's totally letting him off the hook because thanks to him I can now move to a bigger house, gotta love bribes, huh?
I mean it would be alot more reasonable if Aida's defense was that it was just a bit of a sexual roleplay to get their rocks off and it wasn't meant to be actually taking seriously or anything, since the actual rape wasn't recorded.
Well they could have tried a DNA test on the boy to confirm who the father is. If by chance, it was confirmed to Aida's then it would serve as proof that he did rape her because of the timing. On the other hand, if it was confirmed to be the MC's, well that's a good thing for the MC for obvious reasons. Not that it should affect his treatment of his son because regardless of blood, he's still his son cause adoption is a thing... Family doesn't have to be blood related.
Also, how come Misaki can't seem to tell that the MC is depressed, lifeless, and not himself. It seems like even his co-workers notice that something is off about him but his own wife doesn't even seem to question it or ask what's wrong?
I think some good old communication is really helpful and needed, especially to work out any problems. He should confront her but he doesn't need to do it in an overly aggressive or hostile way to scare her. But to try to bring it up in a civil and understanding way so that they can try to fix any marriage problems they have without having to resort to divorce or anything extreme, which is what the MC is afraid of. He just needs to bring it up in a tactful and kind & gentle way, so they can just talk about it without causing any unnecessary bad feelings.
Then she would just need to explain that she had been blackmailed, tricked, and manipulated by Aida and Kurokawa to perform sexual acts for them and she felt guilty and wanted to tell her husband but she was too scared about his reaction and didn't want to lose him and their family, and just apologize for everything. I am sure the MC will forgive her even if he will have a hard time forgetting what he seen. If Misaki has problems being sexually satisfied, they can certainly figure something out, and use various toys and methods to help her get off, it's not a big deal.