The Sealing: Cosmic Sovereignty Technique (封印・宇宙万乗の術, Fūin: Uchūbanshō no Jutsu) is a very powerful Fūinjutsu that gains its basis from the use of the Yin–Yang Release with a tool of some kind attached. Generally, Yoshihira employs the sword with this technique, simply due to its effectiveness in bringing out its strengths - and associated weaknesses. The Sealing: Cosmic Sovereignty Technique is a technique that epitomizes the advantages of an individual with the nature of balance itself through immediate conversions as a method of sealing.