Board Thread:General Discussion/@comment-7397924-20130630152208/@comment-11051098-20130712044052

She stated her goal, as well as the task given to her by Shunsui, was to unlock Kenpachi's full potential, which he had unconsciously limited ever since he first met her and fought her. And she stated when he "killed her" in the end, that her task was completed.

Regarding her sword fighting and healing, it seems she didn't have any particular skill with Kidô at the time she met young Kenpachi. She fought dozens and dozens (implied) of guys, defeated and killed them all and was bored.

We know she became the first Squad 11 captain about 1000 years ago when Yamajii founded the Gotei 13, and she apparently was the master healer 110 years ago too. But we don't know when, between those, she was taught healing spells and became the Squad 4 captain. Regarding the master healer, I think she could have become that after Kirinji was promoted to the RG.

Seeing as he taught Unohana healing spells, Kirinji must be quite old. And to back up my previous claim, I think he may be one of the silhouettes we could see in Yhwach's flashback of the first generation captains from the time Yamajii founded the Gotei 13.