Not quite. Yami was essentially adopted into the pod after Yugi found him alone at the edge of the reer they frequent. Yugis mother opted to take care of him, so they pretty much became brothers in all but blood.
Aww! Awesome! ^^ I really like this AU! I read all of 'em last night.... 
They're just that good! ^w^
They're just that good! ^w^Aww, thank yoi so much! Im glad new people still find and enjoy them! ^^
^^ But of course! Can you watch me plz? ^w^
Idk, my watch list is pretty full as it is, and I usually only watch people for art content that they produce if Im into it.
Oh, okay then! ^^