As a Reincarnated Aristocrat, I'll Use My Appraisal Skill to Rise in the World S01 E16 Vakumakuro Fortress

Under the leadership of Ars and Lumeire, Canarre's army attacks the Vakmakro fortress. Only by capturing it can they seize Castle Samkh and thereby conquer the entire district. However, the defenders of Vakmakro have come up with a surprising strategy...