Kōsen

is the signature technique of Akuyo. Unlike most jutsu, this technique does not utilize the of the user. It instead uses one's presence and emotions and condenses them into a particular point of the user's body. After the condensing of the emotions and presence is complete, Akuyo fires off a pressurized blast at his target.

Trivia

 * This technique was highly influenced by the Cero used by the Arrancar in the Bleach series.