Let's talk a little about this project. If you know your genres and you hear that there is a game where dungeons start appearing, and people start to awaken, you probably think of fight scenes and powerscaling. The most prominent example of the genre would be Solo Leveling. Now, truth be told, that's not in the budget.
There is a second genre. The 'you're not good enough for my daughter' type of story. And that's exactly where Perfect Son-In-Law shines. The usual powerscaling/dungeon story works as a backdrop that supports and enhances the romance aspect of the game. I know it would be cool to see large and epic fight scenes, but that's not quite what this story is trying to be.
It's an AVN with one main love interest and two alternative love interests. One you already see in the demo; the other appears only late in the story.
Now that you know what the game is about, give it a try.