Who's Los?
I think you’re totally right
They mean the bard without a voice, Ros. Maybe they read another translation or the original, R and L are used interchangeably in korean, if that's what confused you
I was convinced Ros is part of Eros, just didn't know how exactly, and this makes so much sense!
Wow I do like this theory
This is my theory! Los is Eros’s shadow! When Eros accidentally cut himself with the golden arrow and fell for the MC, the side effect he spoke off that even the gods didn’t know was that a version of himself would be made. And it makes sense, Los doesn’t remember anything and he seems to have some godly powers of playing music, which Eros can also do in mythology!