Kūgun

Kūgun (空軍, Air Force) is a technique associated with the Niten style of Zanjutsu taught to aspiring students of the Yuengiri Academy, which is used by both the Ryū Order and the Dragonforce.

Description
One of the more difficult techniques of the Niten style to perform but also one of the most useful. Instead of coating the blade alone in fierce wind currents, the practitioner instead coats their entire body in fierce, lacerating wind currents that leaves no openings to exploit. Meian used it many times before the Niten was even conceptualized, as the technique was based upon one of the powers granted by his zanpakutō Hitoare (ひとあれ, Squall). Kenji and Maki both describe Kūgun as the Niten's "ultimate defense" as even coming into contact with someone when Kūgun is activated is akin to committing suicide. The winds surrounding the user are simply too powerful and too swiftly moving to pierce without some form of enhanced protection, and even then coming out unscathed would be a miracle. Kentaro, under the Kage persona, demonstrated just how brutal Kūgun can be when he put his opponent into a Hakuda hold, where he then activated Kūgun. The persons body was shredded to pieces in seconds.