Liu Zhiyuan, a modern female college student, accidentally traveled through time and became the cannon fodder Liu Concubine who was about to be killed by the tyrant Xiao Yu with a stick in the short play. In a desperate situation, she activated the reverse system that can reverse time and space and was successfully saved. In order to save the Liu family, who was falsely accused of corruption and about to be executed, she had to deal with the moody tyrant Xiao Yu. From seeking survival in the cold palace to praying for rain in Yuzhou, his outrageous behavior aroused the curiosity of Xiao Yu, who can retain memories in the cycle. In the countless time and space entanglements between the two, their relationship quickly became subtle. In the end, they teamed up to investigate the injustice of the Liu family and brought down the powerful Chen family and the Queen Mother. The tyrant and the demon concubine gained true love that transcended time and space.
