Death March to the Parallel World Rhapsody, Vol. 25 (light novel)

Having been recognized for his achievements as the Vice Minister of Tourism, as well as his party's victory against the demon lord, Satou and the girls receive medals of honor in the Shiga Kingdom! While making the most of their time in the capital, they're able to reunite with Zena and the oracle priestess Sara, but they're soon attacked by more red-rope monsters! Just as Satou steps in to dispatch them, they're swiftly slain by the third prince Sharonik, wearing the Flue Empire relic known only as the Holy Husk Mobile Armor. But there seems to be more to this ancient armor than meets the eye...