We met at the age of five, joined Xiaoyaomen at the age of ten, married into the palace at the age of seventeen, died at the age of nineteen, and reappeared five years later. The love and pity five years ago, the hatred five years later, the former lovers are plotting against each other at every step. Using love as a shadow to compose a dream song, is it an unforgettable obsession or a gorgeous killing game? The night is too deep, who can take pity on the lonely shadow, waiting for you to fall into a dream.