Light Novel Volume 15

"Genjitsu Shugi Yuusha no Oukoku Saikenki XV" ( 現実主義勇者の王国再建記XV, How a Realist Hero Rebuilt the Kingdom Vol. 15 ) is the 15th volume of the Light Novel series written by "Dojyomaru" and illustrated by "Fuyuyuki". It would be first published in Japan on June 25, 2021; with the English digital version releasing on January 17, 2022.

Blurb
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!

Chapters

 * Prologue: As One Country Rises
 * Chapter 1: The Kingdom's Baby Boom
 * Chapter 2: The Truth Overlapping Events Lead Us To
 * Chapter 3: Envoy
 * Chapter 4: The Battle of the Father Island
 * Chapter 5: The Spirit King's Curse
 * Chapter 6: For the Future We Must Protect
 * Chapter 7: In the Name of Mankind
 * Chapter 8: Investigation
 * Chapter 9: The Right Person for the Right Job
 * Chapter 10: The Balm Summit
 * Intermission: Liscia and Maria
 * Chapter 11: The End
 * Epilogue: His Name Is
 * After Story: One Summer Night

Premium Version Bonus
Special Bonus content added in Premium version release (5 Bonus Short Stories) *,
 * The Noise Lover and the Loner
 * Margarita and the Saints
 * Merula and Mary
 * Elulu's Worries
 * Yuriga's Yukata