'Is that a challenge?' Kazuto grins slightly and reached for one of his swords, the Dark Repulser which has a slight green color to it and wields it with his left hand. Kazuto then slides his left foot forward while lowering his left hand so that it's alligned to the height of his hip with the tip of the Dark Repulser pointing towards Rairen at a slight downward angle. 'I must say I've been curious about the same thing-.. come!' Veins pop up around Kazuto's eyes as he mutters the word 'Byakugan' in a low tone and observes the movements of the individual infront of him.
Rairen dashes towards Kazuto, quickly shifting the sword behind him, at the same time he channels good about of chakra in his body flourishing it up, his speed boost in a split second he was able to move at amazing speed, almost invisible to a naked eye. When close enough (still midrange), he swings his leg releasing an amazing projectile of chakra.
[Nakkuru's Kyoukudai Kyuukei] Knuckle's Maximum Break
Rank: S
Type: Supplementary
Range: Short
Chakra Cost: 40
Damage Points: ( +10 to Taijutsu , +10 to Ninjutsu )
Description: The user gathers chakra and channels it into every muscle of the body to energize the cells in the muscles by using chakra . By doing so , the user's mitochondria in the cells of his muscles produces ATP at a much faster rate , increasing the user's speed and strength greatly .
Note:

Takes a few seconds to fully activate

Lasts for 3 turns

Usable only once per battle

No Taijutsu or non-elemental Ninjutsu for a turn after it deactivates

Can only be taught by Rokusho
[Rankyaku Gaichou] Storm Leg Victorious Bird + 10 DMG
Type: Attack
Rank: S
Range: Short-Long
Chakra cost: 40
Damage: 80
Description: The user focuses chakra into his leg and compresses it , then the user delivers a kick through the air and releases the compressed chakra in the shape of a bird which follows the trajectory of the kick . However , the user can make it change it's course by performing another hand seal by infusing chakra .
Note:

No ninjutsu the turn after this is used

Can only be used 3 times per battle

Can only be taught by Rokusho