Seishōen

The Seishōen is a powerful technique invented by Isanami, and became her signature move. She later taught it to Saizō Asagiri.

Description and Effect
The user creates a buildup of the special Way of the Divine Truth chakra around their hand, which forms into a perfect circle. The Seishōen can then be thrust into or used to slash his opponent. Since the special chakra is very energy-dense, a result of the intense training used to obtain it, the Seishōen is capable of penetrating most obstacles with ease. In addition, it protects the hand of its user

Drawbacks
The technique's only significant drawback is its very high chakra cost. The amount of chakra required by the Seishōen limits Saizō to using it only three times in one day. Isanami, its creator, has shown much more skill with it, being able to use it multiple times consecutively without showing signs of fatigue. This, however, is most likely due to her naturally large chakra reserves and the control which she exerts over her chakra network.

Trivia

 * This technique uses a sequence of special hand seals.