User blog comment:Xilinoc/Ch. 626 - THE HOLY NEWBORN/@comment-24531362-20150514204604/@comment-24531362-20150515062258

This is the first of what I call an Implausible, Unfounded Theory (TM):

1. GiGi used The Zombie on Yachiru while Kenpachi was facing off against Gremmy, intending to add her to the March.

2. As it stands to reason that Yhwach somehow dominates the powers of the Ritters, he took control of Zombiechiru.

3. He used his powers to give Zombiechiru the The Compulsury Schrift, intending to use her as a psychological weapon against Seireitei in case he faced opposition.

Admittedly not the best idea I've ever had, but I'd lol if it were true. I'd also much prefer it to the heory that she's somehow Nozarashi.