I would say the father who silently watched her isolate herself without saying a word for 10 years or so, fully noticing her changes in behavior, is worse than the one who fixed his attitude after spending 5 minutes with her
I mean Lenguin kinda ignored her as well he never once tried looking for her after Katherine gave birth to Phil. He knew she was out there but never once looked for her... He also didn't treat his 3 sons well at all. I love Lenguin but he is not the better parent option at all, he can't even connect to Phil emotionally per Lexion's words. Both Lenguin and Eustis have their faults but they both love Phil at the end of the day. Personally I think Eustis redeemed himself far more than most father-daughter Manhwas. Most dad's in those manhwas kill their daughters in the original story but that wasn't the case with Eustis. If anything he apologized to Phil for not being there for her when she was young and needed him and took the blame of her ending up as she did because of him in the original. I personally like both Eustis and Lenguin and think she should keep both and have as much love as possible from her two dads!
Im not really sure if i prefer the emperor or the mage… both of them aren’t exactly model fathers and its hard to say which was worse but feels like the author is really pushing the mage route so ig its gonna be him