not related, they are two groups under the same mafia group and capo is "mafia boss" so they are the bosses of their groups!!
In mafia, at least the Italian one, 'family' refers to the group as a whole or at least the people at the center like the boss and direct subordinates, so uke and seme ain't blood or law (as in stepbrothers) related, unless the author says so in the next few chapters. I don't really know the whole implication but that's the general idea.
As for Capo you can say it's like the second in command I think, you can just google it or infer per context following the hierarchy tree that was in the chapter.
Ohhh makes sense!!! Thank you for explaining!
Ah okay yeah that makes sense. That's what I figured but I wasn't sure. Thank you for explaining!!!
Like are they (distantly) related or does it just mean group? Also, I wasn't really clear on what "Capo" was referring to.