There actually IS a reason for that. I haven’t read the novel but I’ve read spoilers. The reason that the characters keep referring to him as “ugly” is actually really interesting. Let me know if you want me to spoil.
his face looks blurred to other incarnations because of the 4th wall. there's actually another reason but i would be spoiling the epilogue
It's because the MC's face is unrecognisable that's why they have been calling him ugly.
I have read the novel some years ago and...
Spoiillerrrrrrrrr
It's because MC's face is currently "under construction" his face will be revealed to others after he get some tittle I don't quite remember if it's when he became the demon king of salvation
Please do spoil me! Thank you!
Spoiler.
Okay. So, i'm currently reading the novel and i'm wondering why is our mc called the ugliest king? Like boi, my man is so fine, duh! Why would they call him that? （/TДT)/