Oam Monogatari: Sono Natsu, Watashi ga Shitta koto

In Ogaki, An finds a small ball and learns that it is a musket shot from the age of warfare. Her discovery turns her thoughts toward Oamu, who once helped make ammunition inside Ogaki Castle before a decisive battle.

A ride in a tub-shaped boat with her sister, an apprentice boat operator, gives the city's waterways a new significance. The peaceful present and the anxious preparations of the past come into focus as An considers the history left beneath familiar surroundings.