Kenjutsu: Oni Blade

This is an S-Rank Kenjutsu invented by the 'Queen of the Blade' herself, Rissa Uzumaki.

This technique, although simple in principle, is a highly deadly technique.

The user of this technique must flood Chakra into their blade of choice. Depending if they flood the correct amount and type of Chakra needed, the blades' size will grow a hundredfold, but will still be able to wielded by the caster of this technique.

The user can use the 'Oni Blade' for up to five minutes, and in the right hands, is one of the most powerful techniques to date.