the previous commenter was talking about the translator (not author) of the novel changing the way they write her name in th text or something (never read it but thats what i understood)
her original name is literally blondina i checked the naver raws and she's 블론디나 in korean which is really just beullondina (kr way to write it)
Blondina is an actual name tho. It means like gift of God or God's gift or gift for God. Something like that I know it means gift + God so like in relation to the story it works cause I'm pretty sure she is a descendent of the God that was killed and Amon is basically considered a God and she's connected to him so like it works for her name.
Tho I will say the author probably choose the name Blondina with the character being blond just cause it's funny instead of all the other God + gift related names lol
nah bcs i discovered this on webtoon and didn't continue bcs her name is literally just blondie... like cmon it's literally a regency/fantasy webtoon and u call your main character blondina- TO THE STREETS