@ladyharhar In the LN, Cerberus is gone from the western nations after Yuuki bailed in Vol 11, so before the empire war started it's already gone. But since there was a war a couple of chapter back, it looks like it's after the empire war but before tenma. It can't be before Tenma because this...
Are you sure it's Half-foot not Harfoots? A type of Hobbit(Halfling). They sound similar enough but might just be a funny coincedence.
https://lotr.fandom.com/wiki/Harfoots