User blog comment:Xilinoc/Ch. 668 - BIGGER,FASTER,STRONGER/@comment-957629-20160331154647/@comment-957629-20160331203239

My bad, I was being very sarcastic about the matter. According to Chapter 114, from Yachiru's own thoughts she was already her own entity/separate being living is Kusajishi, or District 79 before Zaraki showed up and "saved her life".

This needs a very good explanation as a result.