It’s because in the novel he was the father of the villain
oh hecc--how did I not realize that? anyway, thank you for explaining ♡~(❛ω❛✿)
They also just called him father because the author killed him without giving his name to the readers. So the title "father" became his form of ID.
Heol Daebak !!! I just realised that !!! I’ve been reading this over and over again but I didn’t think about that ε=ε=(ノ≧∇≦)ノ
ok so I kinda just started this (I'm on ch. 9) and I was wondering why she calls him 'father'? Was that what the fandom called him in her past life while reading the webtoon? Sorry I'm just a little confused ^^;