I'm sorry but I have to say that I don't understand this particular "series" which you are speaking of. Nor do I recall any authoritative member in this academy having a character by the name of "Rixu."
The only student we have here by that name belongs to one of our members ~
heartless2core. If this is a matter of someone else misusing and original character then perhaps you'd best take it up with them.
~KanDee