Seven chapers in, with barely any action from the father's side, and the guy who isn't a bad person is now assumed to harass him and is also treated the mother badly, meanwhile the mother openly admitted to tricking him into raising a child that wasn't his own so him not being the heir isn't unfair in any way since they aren't related, and again Ain's introduced him as a good character so that's the first standard we have of him to use, because first introductions are important and anything otherwise has to be shown and the dude was thrown out of the picture long ago and now he's just being mentioned, I want some justice for the man