All states of the flying islands are forced to stop fighting and unite in the face of a common threat from the west. A huge empire sends an expeditionary force across the mountains to destroy first the Glued Kingdom, and then the rest of the “heretics”. The united army endures a difficult battle, in which it actively uses all the new weapons it has accumulated. Having defeated the enemy, the main character confirms the received rank of admiral and leads the best soldiers on a retaliatory raid. After the end of the war, he returns home to create a school for air captains and begin a peaceful life.