is there no chance for them being in a poly relationship?

dawg two of them r BLOOD brothers

Oh, like they're actually related? I thought they were blood brothers like, swearing a blood oath to each other like Oðin and Loki or smth. Hmm! Did I miss it somewhere? It could be possible I just forgot because of the long read time. Are they half or full?

SWEARING A BLOD OATH TO ECAH OTEHRokay tbh might be my bad now that you've mentioned, cs they never explicitly said that they ARE blood related. When myeongil said "you're brothers? not some kind of prison thing?" in the first few chapters to hj, he never said anything about them being half brothers so I was pretty much assuming that they're blood brothers. Either way, i think its still weird to put them in a poly relationship.

I read the raws and in the author’s Q&A they said the both of them are full siblings

Ah, I see! Thanks for the clarity

ya np cuz I thought they were half siblings at first