The war ended the old world, but ignited a different kind of fire.
In the 180th year of the Wasteland Era, mankind rebuilt civilization on the ruins. The four main cities are divided into one side, mutated creatures are rampant in the wilderness, and unknown secrets lurk deep in the gray realm. In this era of strong predators, a power called "heart fire" began to quietly awaken among the survivors - some said it was the sublimation of will, some said it was the embodiment of the soul, and no one knew its true source.
When the shadow of the Gray Realm begins to spread, and the truth about the Heart Fire gradually emerges, a young man who walks out of District 9 will ignite his own flame on this ruins...
(The title of the book is repeated, with the letter A added. After thinking for a long time, this name is the most suitable. Readers, please forgive me)
