I agree with you. The fact that every single character is awful and irredeemable makes this game hard to like.
The wife is also a horrible person. She can lie to herself as much as she wants, justifying that she’s not cheating as long as she’s not holding a dick in her pussy, while David is genuinely trying his best to be a good husband. Yet, she has the nerve to treat him like trash for something he didn’t even do.
At this point, I just hope one of the endings in this game is David realizing that Anna is a toxic person who isn’t worth his time. He should take his daughter, leave, and start over far away from everyone he knows—except his father, who’s the only one genuinely on his side. Otherwise, I don’t see myself continuing to read this visual novel.