A/N: this take place after the curse of the rainbow arc , and tsuna is now officially decimo. Tsuna was in his office signing paperworks as usual cause by his oh~ so 'responsible' guardians and enma came to visit him. Lambo came crying and accidentally shot both of them with the bazooka and instead of being sent ten years in the future they were sent 400 years in the past and they need to beat the Scrattez famiglia so that they can go back home but can they keep their identity secret? Let's read and find out!