I think I forgot or something but was it ever mentioned that they’re not blood related i...

I don't remember but I want to believe that's true (and I don't even like step-brothers together but they will be my only exception

I think in the side stories before this one, the older brother was adopted, so no blood relation.


… but in the original story line they’re half brothers. And I know sometimes in translations they call step-siblings half too, but I don’t think this was the case.

wait i thought in the original storyline, the younger brother's mom had him before she got
married to the older brother's dad??

they were half related in the first one I think, they had the same mom.
second story line they are adoptive brothers
the third one too (i think i remember that)