How a Realist Hero Rebuilt the Kingdom (Light Novel) Vol 7

Visiting the neighboring Republic of Turgis on a diplomatic mission, Souma's eye is caught by the skill of the local blacksmiths?and an idea occurs to him. Sensing that he'll need the cooperation of Turgis's head of state to make this scheme a reality, Souma prepares for a dual display: show the republic both what they could gain from working with him?and what wrath they might incur if they refuse. Will this bold move work, or backfire on him?!