Tsuna is sent to a parallel world where he isn't the Decimo. Apparently he is hated by his family because of his horrible crimes, so he gets the blame for all their problems. He has a twin and younger brother now so his life is pretty much a train wreck now. He has to hide his secret and pretend to be Dame. He hates the treatment and only the comfort of his friends keep him from lashing out. But he will always be always be the forgiving sky. And as always you come to love this little fluff ball.
I know I already have a parallel world fic but this is different. Also an original.