Aoiro Rinne

Aoiro Rinne (青色輪廻, lit. "Blue Reincarnation") is a Noble Art of Shizuku Kurogane.

Description
Aoiro Rinne is a Noble Art, that allows the user to manipulate the trillions of cells inside them. They can transform themselves into water, healing all damage they've received. Aoiro Rinne also allows the user to manipulate the air around them to suffocate their opponents. Kiriko Yakushi is also capable of using a similar technique, although at a much better level. Shizuku has created an improved version called Aoiro Sekai (青色世界, lit. "Blue World"), which can be used on other people and revive them from death.

Weakness
Using Aoiro Rinne requires immense precision, as even a small mistake can kill the user, when they are reforming themselves. Even Shizuku, who already had very good magic control, distorted her body when using it the first time.