Responses

I agree, I think the father should have started with visitation though not just taking the kid and cutting contact with his brother (more like his actual parent) no wonder it ended badly.
I'd like to see the father become part of euiyoungs life, they both deserve to know each other and go from there slowly. Abandonment issues are tough to get over even if the patent comes back
About the dad....VERY controversial maybe but think Its way more complicated than 'he's a bad person'. he really effed up in the past but nobody's perfect (and someone commented here it might have even been post partum depression from the environment he was in) and all his actions since he re-appeared in the story so far have just been because he wants to be with his child again.
admittedly he did it with ZERO!! tact but ┑( ̄Д  ̄)┍ ultimately this is just a webtoon lol but irl i'd feel a certain amount of sympathy for the dad for sure. In the next chapter it seems teaju's gonna really lay into him which will be a mix of satisfying and a bit of bummer to watch
also, the only real villain here is the alpha dad imho