Su Bai travels through the fantasy world and awakens to the all-things-changeable system. He encounters the amnesiac Empress Liu Qinghan in the ancestral mausoleum of the Holy Land of Extreme Cold, and names her Xiaohan and takes good care of her. The two experienced memories in the Netherworld and adventures in the ancient ruins of the Great Emperor, and their love gradually grew. Faced with many crises such as the Black Yama Holy Land and the demon clan, Xiao Han revealed the true form of the empress many times to protect Su Bai, but was eroded by the power of time. In order to protect his beloved, Su Bai cultivated to become an emperor along the way, swept away the demon clan, overthrew the demon world, and finally found Liu Qinghan and his daughter Su Qingyu, perfected the immortal way to open up a prosperous world on earth, fulfilled the wedding promise, and performed a celestial-level romance that spans life and death.
