How A Realist Hero Rebuilt The Kingdom Vol. 14 (Light Novel)

In Vol. 14, Kazuya has defeated the giant unknown creature that threatened the Nine-Headed Dragon Archipelago. The people of the kingdom celebrate his achievement, but it is soon overshadowed by a much greater achievement: reclaiming a piece of the Demon Lord’s Domain, which Fuuga, the King of Malmkhitan, accomplished. Fuuga’s achievement leads to his power and influence rapidly expanding within the Union of Eastern Nations. But when an opposing faction makes an unsuccessful attempt on his life, the nations of the Union are drawn into a massive conflict!
Notice: This book is written in Japanese.