At the end of the Chaos Era, the Yu tribe retreated southward under the pressure of the extreme northern ice edge. The Beiyu tribe occupied the abandoned stone city at the southern foot of Eagle Beak Peak and established the first and only unified political power in the history of the Yu tribe - the Beiyu Kingdom. Three hundred years later, the royal power was weakened and the city-states were alienated. The seventeen-year-old last feather king Shi Chengyi succeeded to the throne but did not ascend to the throne. Tie Yu, the Marquis of Gray Wing City, sent troops south, while Shuang Ling, the Marquis of Frost Wing City, secretly cut off the grain route. Shicheng fell, the Zending Palace was burned, and the Beiyu Kingdom came to an end.
A wingless wandering singer traveled throughout the Hokuriku, sat down in front of the ruins of Stone City, and sang the scattered fragments of history into a song.
Concept: An epic poem in the form of an imaginary world entry