Su Jin, a modern social animal, accidentally traveled through time and became the foolish legitimate daughter of the General's Mansion of the Yan Dynasty. She was sent to the palace by an imperial edict and became the substitute of Bai Yueguang who died young in the heart of Emperor Xiao Che. Everyone in the palace regarded her as a plaything and a target. The hypocritical queen, the arrogant concubine, and the covetous courtiers all wanted to get rid of her. Su Jin uses modern thinking and historical knowledge to survive cautiously on the edge of the knife, using retreat to advance and using wisdom to defeat strength. While playing the role of a weak stand-in to paralyze everyone, she secretly collected intelligence, cultivated power, and alienated opponents. With her insights beyond the times, she gently guided the emperor from behind the curtain when he was dealing with political difficulties, gradually transforming from a "stand-in toy" into a "telling flower" and "strategist." Her relationship with the tyrant Xiao Che was repeatedly pulled between suspicion, use, dependence and true love. When the hypocritical queen's deadly conspiracy is revealed, when the war in the north and the factional strife in the court break out at the same time, Su Jin shows her strength in the crisis, assisting Xiao Cheping in the internal strife and fending off foreign enemies. Finally, he sees clearly that what he loves is never the vague phantom in his memory, but the real woman in front of him who is vivid, tenacious, and overlooking the country side by side with him. She broke free from the shackles of a substitute, moved from the deep palace to the front court, and became an unprecedented legendary queen who ruled the world together with the emperor.
