Grown up Tsuna, To 5 yr. old tsuna

Tsuna was sent to the past by reborn.Worst he have to pretend to be Giotto's son.And the good news is he's going to have a 5 year old body.
Smart/Cool Tsuna.
Disclaimer: I don't own khr, the pictures and also the videos but I own the story.
Sorry for the wrong grammars and spellings.