User blog comment:Omega natsu2/Chapter 357: The Nine Demon Gates, Predictions./@comment-7418318-20131025090150/@comment-33019320-20131025091214

I'm pretty sure that she is somewhat similar to Kyouka in which the first name is just her title and the surname is her actual name. So you can just remember her as Seira which is much more simpler than having her name and title there.