After traveling through time and becoming a substitute princess, Shen Yunxi just wanted to run away. On their wedding night, Xiao Mochen caught him climbing a wall, and in order to escape, he accused him of being a "lone star". Unexpectedly, the sinister prince will use his plan to seize her military talisman and trap her heart, forcing her to join forces to stir up trouble. When the lies come true, the heart has fallen, and the marriage that started with calculation has been overturned.
