Accompanied by his skilled companions, Kazuya Souma, known as the 'Realist Hero,' persists in revitalizing the Elfrieden Kingdom via administrative changes. Following the triumph in capturing Van, the Amidonia Principality's capital, Kazuya confronts the Gran Chaos Empire's delegate seeking retribution for violating the ban on warfare in the Mankind Declaration Treaty. Amidst this tense scenario, Kazuya strategizes to avert hostilities and secure fresh alliances. Though his scheme appears flawless, the pivotal hurdle lies in winning the envoy's endorsement.