Board Thread:General Discussion/@comment-25266931-20151115205337/@comment-26275685-20160312111959

73.Anon.52 wrote: Or(and this is my personal theory of how aura works) when used offensively(such as Ren and Fox  demonstrated) the aura does not protect it's user(as it is no longer projected in the normal way to protect their bodies) and thus leaves them open to injury/scarring.

Oh like characters in fighting games who for a split second leave themselves open to attacks.

I thought of the theory that he recieved some of them as a kid before unlocking aura and some while practicing after running out of aura.