Board Thread:General Discussion/@comment-1351982-20130515183016/@comment-10630156-20130614100144

Mayuri is the one to have said "it's because you failed to kill that man" we know this but also I might add is that he started experimenting on quincys soon after becoming captain we know this because Soken was the last and that was years before the beginning of the first arch so I can presume their was many others before this.

I have a crazy theory that a younger Mayuri might have witnessed the events of their fight and was annoyed that Yamamoto didn't finish him off for some reason (personal I think) hence his outburst at Yamamoto (he had some balls saying that!)

I'm hoping for some back story from before maggots nest (and possibly how he ended up in there) to find out why he got so angry like that because nobody else seemed to. Maybe there is something personal between Mayuri and Yhwach?