"More to Come... "
She is a especially poweful Fōrun-juu that has lived for centuries before settling down with a powerful vizard, Shinji Hirako. And within the years gave birth to a child named Ren Hirako. Unfortunately, she died by an unknown disease years ago, however, her soul has currently taken residence in Ren's Jō staff that was given to him by her.
In sealing her soul in the staff whenever Ren is inside his Inner World he can come into contact with her, allowing her to openly speak to her son on a regular basis. Currently, the latter is completely unaware of this and has no idea how to converse with his mother. It is later revealed that her real name is Kokoro Hirako(心平子,Hirako Kokoro) and her surname is before being married is Takeuchi(竹内).