Death March to the Parallel World Rhapsody, Vol. 10 (light novel) — Hiro Ainana

Satou and his cadre arrive at Muno Castle, where a demon posing as a magistrate is in charge, and he's got everyone fooled -- or so he thinks...! The beastfolk girls try to take him down, but little do they know, a horde of goblins is preparing to lay siege to Muno City! Will the party be able to fight a war on two fronts, or is the city doomed to fall...?