Water Release: Night Sparrow Technique

Shūgetsu, utilizing his clan's Hiden, manipulates his bodily fluids to change his form and protrude two wings made out of water outside of his body. The technique, in order to be used, requires him to sacrifice some of his physical strength in order to keep an equilibrium in the level of water around his body. Thus, the technique, whenever utilized, is instantaneous and commonly used as the finishing stroke.

Though he uses it sparingly, it has become his signature technique because of the manner in which he uses it to conclude battles. Because the wings are an extension of his physical body, Shūgetsu is quite easily able to manipulate the wings' density and overall shape to fit his own needs. He rather regularly uses them as additional limbs, providing an element of unpredictability into his fighting style, before finishing them off with his blade Ryūbōden.

Notably, despite being a C-Rank technique, the level of chakra the technique requires makes it difficult for him to use it for prolonged periods of time, thus, he uses this as a psychological advantage to instill fear in his opponents in that he is using his "ultimate technique".