Quantum Release: Invisible Shielding

This jutsu is extremely impressive in terms of defense. The user outputs some of his/her chakra all around them and creates a shield. The shield is invisivble unless hit, then it turns a clear blue color. The user can make it as big as he/she wants, depending on how much chakra they decide to output. A coating of it, that coats their body, takes next to no chakra, while a sphere covering a whole village takes an extreme amount. The only way for it to go away is by repeatative hits on it, non-stop. Nothing can penetrate it, other than that.