The Great Tiger Kingdom of Haan, the Gran Chaos Empire, and the Maritime Alliance headed by the Kingdom of Friedonia compete with one another in a newly tripolar world. Suddenly, the Spirit Kingdom of Garlan, home to the high elves, attempts to make contact with these three great powers. They desire to regain the land they lost in the expansion of the Demon Lord's Domain. Souma, however, refuses to help them, seeing no benefit in doing so. Meanwhile, the Great Tiger Kingdom accepts their request and sends troops. Things soon take a downturn as a crisis unfolds; healthy soldiers are collapsing one after another. It turns out that a deadly disease known as the Spirit King's Curse has been running rampant in the Spirit Kingdom! In the face of a novel disease that could threaten the whole world, Souma introduces new policies no one has ever seen before! Here comes volume fifteen of the revolutionary administrative fantasy series!

"Starting today, I will formally become the king of this Kingdom of Friedonia." Having returned from the Union of Eastern Nations and rested awhile, the ceremony that will turn Souma from a provisional king to the true king is rapidly approaching. Because Souma's marriage to his fiancées is to be held on the same day, the capital gets more lively than ever! Meanwhile, using his own marriage as an impetus, Souma encourages his retainers to get married, too. Those who are already engaged to be married, those who aren't ready to be husband and wife yet, those who haven't even recognized their own love—Souma shows concern for all his retainers' different circumstances... The revolutionary administrative fantasy series, volume ten!

With Souma's defeat of the giant monster that menaced the Nine-Headed Dragon Archipelago, the people of the Kingdom celebrate his achievement. However, as far as the rest of the world is concerned, someone else has done something even greater—reclaim a piece of the Demon Lord's Domain. That is what Fuuga, King of Malmkhitan, has accomplished. Within the Union of Eastern Nations, Fuuga's power and influence rapidly expand. Unable to accept this encroachment, the anti-Fuuga faction launches an unsuccessful attempt on his life. This sparks all the nations of the Union to be drawn into a massive conflagration?! When this conflict ends, the world will move on to a new stage. Here is volume fourteen of the revolutionary administrative fantasy series!

RISE AND GRIND! ​Desperate to protect those close to her, Zena approaches Satou with a simple wish: She wants to become stronger. Naturally, Satou agrees to help, and he and his party subject her to training so rigorous the other explorers can hardly believe her growth. Not one to be left behind, however, Karina enrolls herself in their Labyrinth boot camp as well! But they’ll need to be quick about it. Satou is due in the royal capital, and if his luck is anything to go by, it’s only a matter of time before trouble rears its ugly head!

Two years have passed since the Spirit King’s Curse shook the world. In this time, Souma and the Kingdom of Friedonia have been preparing for an impending period of unprecedented chaos. However, the Kingdom was not the only country to burgeon over the two years. Fuuga has been expanding the border of his Great Tiger Kingdom of Haan as well. Following the acquisition of the Lunarian Orthodox Papal State, Fuuga sought to bring the Mercenary State Zem under his control. Now, having gained such powerful forces, he declares war on mankind’s greatest nation—the Gran Chaos Empire. With this move, an agonizing question now hangs in the air: should the Kingdom abandon the Empire, their ally, to avoid conflict with the great Fuuga Haan? The cruel war begins in volume sixteen of the revolutionary administrative fantasy series!

A DANGEROUS PRIZE When Souma receives an invitation to a martial arts tournament, he has no plan to attend until he discovers two things: first, the grand prize is a single wish, and second, the daughter of his kingdom’s former general will be participating. Her father was arrested as a traitor, and she has every reason to hate Souma and the Elfrieden Kingdom. Now, he’ll have to discover her true intentions before she gains the power to start an all-out war.

Risking her life to save her homeland, Shabon, a princess from the Nine-Headed Dragon Archipelago, joins Souma's side in hopes of stopping an impending war. But with a fleet already en route to the hostile archipelago under his orders, Souma sets out to infiltrate the islands before they arrive. As he gathers information within the enemy territory, he finds that the real threat isn't their naval fleet, but a massive creature in their waters that defies all common sense...?! What strategy will Souma come up with to handle these two encroaching threats?! Find out in the thirteenth volume of the revolutionary administrative fantasy series!