Busoshoku: Yura

Busoshoku: Yura (武装色:揺ら Color of Armament: Egoism) is a variation of basic Busoshoku Haki that allows one to vibrate the molecules within their aura. This permitts the cloak-like aura to take on a myriad of forms and effects, since it is not hardened and thereby flexible.

Within the Haki Development System, it is a technique of the 4th Dan. It is sometimes referred to as "Shaking Fighting Spirit".