Xiao Zhaoyue, the eldest princess of Dasheng, spent ten years supporting her younger brother Xiao Chengxi to ascend the throne. She defeated the vassal king, killed the powerful ministers, and settled the northern territory for him, and she also suffered the infamy of "the chicken Si Chen". After the new emperor secured his throne, he gave her a glass of poisonous wine and admitted that she was not of the Xiao family, but a chess piece left by Beidi in the Dasheng royal family.
After Xiao Zhaoyue's death, he returned to seven years ago and woke up on the rainy night when the late emperor passed away and the false edict was about to be read.
In this life, she killed the eunuchs in the palace, sealed the palace gates, detained the queen and the prince, and went to the court to supervise the country as the eldest princess. She originally thought that as long as she no longer supported Xiao Chengxi to ascend the throne, she could save the defeat of her previous life, but gradually discovered that: the death of the late emperor, the replacement of the emperor's heir, the fall of the northern border, the unjust case of the Gu family, and even her own rebirth, were all connected by a "Candle Dragon Game" that lasted for twenty years.
She has to face not only her enemies, but also the people she accidentally killed in her previous life, the people who died because of her choices, and the cruelest problem - if she wants to change the rotten dynasty, she must eventually take the position she swore she would never covet.