I know it`s late to say my oppinion about Before you go mv, hahaha little bit busy with my college. Honestly I like that MV, just hope the MV contain the five member, but I know that is impossible. I dont saw the point why Go ara appeared in that, that is so unnecessary. I think its enough just with yunho, changmin and the other guy *i am sorry dont know his name* . Just feel uncomfortable with she being with yunho. Are SM dont have the other artist? And about the story of that. i just feel its like the way DBSK member right know. The story tell us about how the person become a Traitor or betrayer. I think its the way they though about JYJ. The guy did the bad thing also because of his sister *i think she is his sister* he just didnt want she get hurt. And it is just the same with JYJ they out from SM is because SM doing bad thing toward them, SM pressure them, so they out. And about the ending MV when yunho give a second chance to this guy comeback, he refuse it. Its like, homin are give a chance to JYJ to back again as five member of DBSK but JYJ refuse it. And the very ending, he imagine the goodtime they spent together just like DBSK when the five of them together, happiness is everywhere.