Ryōtō

Ryōtō (霊刀, Spiritual Blade) is a famous Kenjutsu designed by Yin wielders. It was traditionally used as a Kenjutsu style, yet it got developed and turned into a Bukijutsu style meaning that it can be used on all weapons. This technique is considered highly lethal as it uses the Yin principle to a very dangerous degree. When there is a technique with an imbalanced Yin and Yang, meaning that Yin and Yang aren't in equilibrium, the jutsu tends to consume the missing portion in order to reach the aforementioned equilibrium. For instance, if a jutsu was made where Yin is highly dominant, it would absorb the Yang of anything it touches in order to reach equilibrium.

Thus, this technique was made based on that concept. In this technique the user creates an aura of Yin around their weapon. While concentrating a significant amount of Yin energy into a small area, which is the sharp part of the blade. The key is in the compression and concentration of Yin. When a great amount of Yin is concentrated and compressed like that, it would most likely have a "very" high Yang absorption rate. In other words, the blade would absorb the Yang of anything it touches instantly. Meaning that it could penetrate through everything and anything. It can even penetrate through substances that are deemed to be unbreakable as it eats the physical energy instantly.

From an outside view, it would seem as if the weapon sliced through the object with great ease. The aura is black, giving the blades a unique and intimidating color. Not to mention, with this technique, Yin extensions are made form the blade. The Yin extensions are "ghostly" auras of Yin that dance freely around the blade. They seem to be uncontrollable, despite the fact that they can be manipulated. This aura can increase in size. This aura is able to consume the Yang of anything it touches. This Yang goes into augmenting the blade's actual strength and durability, and some are transferred to the user to refresh their stamina.