Board Thread:Questions and Answers/@comment-8959286-20130927152419/@comment-26168276-20140208094934

75.23.234.106 wrote: If Ragna being an Embryo Storage unit were to be true, then he would have lived for more than a century (Embryo Storage Units appear in the XBlaze game, which takes place in the 2040s, more than a century before BlazBlue does)

Why can't somebody else create another Embryo Storage later? Do you really think that all ES could be created only by one person at one point in time?

And that is less likely that this number means that he is a Murakumo. Murakumo Units have different mark: their number is written in Japanese on their neck. For Ragna, that will be 五. But he has -NO.5- mark instead. And Epsilon is not "Es", it's "ε".