This Empress Is Wrong

A sudden storm triggers an ice age, wiping out modern civilization. Researcher Lu Chenchuan transforms his lover Su Li into an AI to protect humanity, promising they will reunite after 5,000 years as reincarnated versions of themselves. Su Li awakens 3,000 years early, helping establish five great empires on Cangluan Continent and earning the title of 'Cangluan Ancestor,' before falling asleep again. Five millennia later, Lu Chenchuan is reborn as King Lu Chen of Great Cang. When Su Li wakes during an ancestral ritual and destroys the mausoleum, they meet but both lose their memories. Su Li remembers only her duty to protect Lu Chen and becomes the Empress due to a dragon-and-phoenix jade pendant. Chancellor's daughter Shen Tianjiao colludes with her father and the Sword Saint to eliminate Su Li during a martial arts competition, while Lu Chen faces death in a desperate battle.