What language is this on these enemies?

[Yasuhiro]

Well just did Fractal again in a roulette and I don't know how I didn't notice it but the Clockwork Knights and Clockwork soldiers are mantles in the museum like place so they do exist in this world and aren't throwaway. (I don't know how to word this better, they are obviously there) I've been reading head canon theories some silly some intriguing about Allagan's being part of Pulse's ancient race but I wouldn't want that to be true.

I think it's best to assume that Eorzea is just a Nexus of Final Fantasy stuff.
I think a bestiary would be nice so we can read up about the monsters existing in Eorzea's world would shed some light on some monsters that exist "just because"