Rokushiki/Kami-e

But there's no art to being hit...

Kami-e is one of the six techniques called "Rokushiki".

Overview
The Kami-e makes the users' body go limp in order to avoid any attacks, and float like a piece of paper.

Variations

 * Seimei Kikan: Kami-e Bushin (生命帰還　紙絵武身): Used by Rob Lucci. Using Life Return, he makes his half-leopard form smaller, lighter, and possibly faster. He is much more agile and harder to hit in this form, as opposed to his normal half-leopard form. In the FUNimation dub, this is called Rebirth: Sketch Form, and in the Viz Manga, this is called Life Return Paper Art Fighting Form.
 * Seimei Kikan: Kaijo (生命帰還　解除): Used by Rob Lucci while in his smaller half-leopard form. It cancels his Seimei Kikan: Kami-e Bushin technique, and returns to his larger, stronger half-leopard form. In the Viz Manga, this is called Life Return Release.


 * Kami-e "Slime" (紙絵「軟泥」（スライム）): Used by Fukuro. Instead of the body becoming limp like paper, it stretches and moves in ways slime or sludge would move in order to avoid attacks. In the Viz Manga, this is called Paper Slime.

Trivia

 * While facing Enel, Luffy essentially used "Kami-e" to evade his attacks, due to his rubbery body.