Aoiro Genmu

Aoiro Genmu (lit "Blue Fantasy") is a Noble Art of Shizuku Kurogane.

Description
Aoiro Genmu is a Noble Art, that lets the user make themselves invisible by using water to refract light. It's possible that the technique can be used on multiple people. The technique is very similar to Stella Vermillion's Flame Veil, although not as versatile.