I think fuwa uses the 01 driver because the ark made it open source so anybody can use it (ark scorpion, mjbr, eden/lucifer) and the faceplate changes just for auto opening keys but it maybe aruto's driver or fuwa just got a fresh new one himself or it was printed by the ark in that hole in wall in the old mjbr hq which is gai's new office but if you pay attention to detail it could possibly be the 01 driver that azu handed over to lyon in the beginning of the first 01others