Dame-Tsuna. No good. Idiot. Stupid. That was all he was. He excelled in nothing, knew nothing- could do nothing. But under that mask was the genius "Hemel" - Said to be the reincarnation of Picasso, a prodigy, a blessing to the human race. If they only knew...

Without an idea how, Tsuna is left in the Italy of 19th Century, in the Vongola Mansion when it was just created. Cut off of contact from his real family, injured and suspected by his own ancestor, he believes his situation can't get any worse. But it does, and he is not the only one to travel back in time. Post! Future-Arc

And before he could say another thing, Tsuna found himself getting slammed before a wall. "So they say, huh, never judge a man by his appearance." AU.