Weaving Armor

Ginshi inside the user react and create a solid, yet translucent, armor around the user. The more something comes in contact with the armor, the stronger it becomes. However, if nothing touches it, the shield eventually weakens and disappears. The user can focus ginshi to a particular area for better defensive capabilities. The strength and coverage correlate to the amount of ginshi in the body. When performed on someone else, the ginshi disintegrate after use.

Variations
When infused with wind chakra, the shield emits a green aura and cuts anything in contact.