Adult PC Game: My Wanton MIL Ver.0.3.5 + Save by Another Vision Studios Win/Linux/Mac Archive

This game tells the story of Jason, Alyssa, and Melody(The MIL).
Jason is an orphan who became successful and rich after overcoming many struggles.
But the one dream he had was to have a family of his own making, which would not be possible due to infertility.
Alyssa is Jason's wife and she loves him dearly.
Still, the struggles with fertility issues on both ends led her to start pushing him away, not because she didn't love him but because she blamed herself, and started believing Jason would be better off with another woman.
That's where Melody came in, Jason invited her into their home because he knew the only person who could reach Alyssa and stop her would be her stepmother.
Thus, he invited her to stay with them for an undefined amount of time.