Board Thread:False Info and Speculative Discussion/@comment-13895380-20150805141216/@comment-5379216-20150807060438

NervousShipper wrote: exactly, completely different from Kira, who was born one iirc

Well Kira says that her Kitsune aura started appearing a couple of months before the events of 3x16. We know that young Kitsunes can't conceal their auras, so if she was born with it then it should have appeared before.

We know almost nothing about Kitsunes, so we can guess anything. Maybe someone becomes a Kitsune only when a fox spirit enters their bodies. Maybe there's a good time for a fox spirit to do that and they have to wait. That would explain Kira's situation. Her fox spirit would've only entered her body a couple months before 3x16.