nick012000 said:
As long as Shirou doesn't do anything to threaten the secrecy of the mages, I don't think the Mage's Association would do anything. Just look up to the shit Zouken and the-mage-who-would-become-Nero Chaos got up to without the Mage's Association doing anything.
Might Rin, Sakura, or both be Arrow fangirls?
Would the Arrow use trick arrows, and if so, what sort?
Would Rin summon canon Archer, or a Counter-Guardian version of this Emiya?
Would any of the Masters make plans to deal with the Arrow, before he actually starts interfering?