User blog comment:Xilinoc/Ch. 569 (You've been hit by / You've been struck by / Senbonzakura~)/@comment-5847836-20140219101029/@comment-26420452-20140220073208

I personally translate it as Guilt of the White Splendor.

It makes me wonder why is there "Guilt" in her Bankai's name. Is the guilt of killing Kaien the essence of her Bankai?