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Hachi, Kyuukichi's faithful dog, leaves Edo and heads for Ise Jingu Shrine to obtain a shrine talisman in place of his injured master. People called such dogs "sanguu dogs" and took good care of them. In the Edo period, ordinary people dreamed of visiting Ise Shrine at least once in their lifetimes. Because it was difficult for them to actually make that pilgrimage, people sent their dogs in their place. Hachi is helped by all sorts of people on his journey, but he can't reach Ise. He doesn't know what Ise smells like, so he can't sniff his way there...
The adventures of the Ouu army continues, centered around Weed's children Sirius, Orion, Rigel, and Bellatrix, along with several other children of Ouu's veterans.
A great forest, infested with flameling creatures and other fallen beasts, covers the world, and pockets of humanity live in small protected communities. Due to a special weapon used in the Last War, human beings spontaneously burst into flame when merely getting close to a small source of fire. The only safe energy source for humanity lies within the bodies of flamelings, and the duty to hunt them falls to the sickle-wielding firecatchers who brave the depths of the great forest. Touko, a young girl from a paper-making town, finds herself in the forbidden forest, assailed by flamelings, when a flamecatcher rushes to protect her. In another place, a young capital-born boy named Koushi shelters his younger sister after losing his mother to factory poison.