|Literal English||Razor Wind|
|Chakra Nature||Wind Release|
Seiji Namikaze through his sword sends a stream of wind which is so sharp and intense that it cuts through anything leaving the victim in pieces. When, used by Ryūken Senju, the air itself is transformed into multiple mighty yet invisible blades of wind. He is able to use air itself to slice objects, focusing a current of wind, or in some cases sound, to the point where it takes on a sharp edge, which the caster launches at foes. Although this attack does usually slashing damage, to some extent he is able to focus it into single piercing stab like immaterial bullet. While the attack is generally performed by slashing the air, skilled users could be able to perform it in water or stabbing ground and releasing attack through those elements. It can be used to cut through the air to cause a vacuum that possesses incredible sharpness. Ryūken has also displayed to ability to use this technique through his sword.