The most noble imperial master of the day and the humblest palace maid in the cold palace died at the same time, only to find themselves reborn in each other's bodies. What's even weirder is that the jade pendants they each carry can briefly connect two parallel time and spaces at midnight - one is a world where great powers dominate the world, and the other is a world where little palace maids change their destiny with the help of modern knowledge. The two souls must not only adapt to each other's identities, but also find the "historical deviation point" between the two worlds to prevent the dynasty from falling in three months.
