Human De-Aging Process

After clapping his hands together, Sakebu Kanakirigoe begins a temporary kinjutsu. It allows the user to physically, but not mentally or gain back any of their prime abilities to their fullest extent, make their body travel back atleast 20 years in time. Doing so, Sakebu takes the appearance of a teenager, who happens to look exactly like he looked like in the past. It is considered a kinjutsu worldwide, and requires an immense amount of chakra.