Name change?

[Shinji Kazuya]

So after some years I finally decided with a permanent name to use on the Internet in all kind of sites and stuff.
My question is: Would it be possible to change my current name to that one?
The name I would like is Shinji Kazuya.

Forgive me if this is not the place to ask. Don't know where to ask besides here.

[Shinji Kazuya]

Thanks a lot! :3