[@KoL]: Yes, that would be fine.

By the way, do note that a Servant appearing as an NPC in the story does not mean you can't make then. Seriously, there are 3 versions of Cu (and Alter doesn't count), and I guarantee you that Caster Cu will pop up at least once in the future.
...
Not this arc, though.

ANYWAYS, WRITING!

Edit: LAST SECOND CHANGE. Nevsky is going to Ruben. Keisuke will go Servantless for the moment.