First Noble Truth

The is a Senjutsu technique devised by Kusanagi, as one of his four noble truth techniques. Embodying the first noble truth of, this technique relies on the creation of 'suffering', which will then be infilicted upon the opponent.

Overview
Kusanagi spent years training in the mountains, learning the concept of Natural Energy, a form of power which laid dormant within the surrounding area. This concept was understood relatively quickly, and after this, Kusanagi began learning Senjutsu. Kusanagi, due to the chakra of Yakedo Itonami deep within him, is able to rapidly call upon the unique form of Senjutsu originally bestowed upon Yakedo, which allows for much more powerful Senjutsu Techniques.

The First Noble Truth is a Genjutsu which uses the power of Senjutsu as a conduit to increase the effectiveness of this technique. The Genjutsu created displays the five main forms of suffering; Birth, Ageing, Illness, Death, and Union with what is Displeasing. Kusanagi first channels chakra into the surrounding area, instantly giving birth to the genjutsu. At first, the realm is one of serenity, before the pain strikes. The pain is one equal to pain of giving birth, which is regarded to be worse than death itself. Once this pain has ceased, the target feels as if they have aged fifty years prematurely, giving them creaky limbs and a weak skeletal structure. After this has occurred, the target feels as if they have been inflicted with a multitude of painful diseases, such that would kill. As a 'finisher' of sorts, the user will feel as if they have been mutilated violently, and then will have their minds filled with their worse nightmares.

Trivia

 * This technique is based upon the First Noble Truth of Buddhism.