The timeline is set in 1643 in the parallel world. The Ming Dynasty continued because the "Apocalypse Explosion" did not occur, but its internal decay intensified. The "Later Jin" outside the Pass changed the country's name to "Qing" but fell into civil strife. Western colonial forces took the opportunity to advance eastward. The story begins in Yingtian Mansion, Nanzhili, and shows an empire that is collapsing but has hidden vitality through the perspective of the protagonist.
