See, that's the one thing that confused the fuck out of me
did we ever find out why Keith and Shiro knew each other?
Them being related makes no sense
If they had some sort of serious background (like Shiro saved his life) then it would be revealed by now
part of me just thinks their parents knew each other.
But, I also kind of like the idea that the TRUE shiro hasn't actually been the shiro we see, because then Keith in particular would feel torn between supporting his teammate, or his idol