There are many karmic ties that exists in the universe. Soulmates, twinflames and fated loves. Kay and Emme are karmic nemesis fated to die by each other's hands in every lifetime whether consciously or by accident. When Emme is pushed off the roof by her rival co-worker Kay, she dies and transmigrates to a new world as the daughter of a noble family who has just been appointed as a concubine for the next emperor Kai of Heim empire who happens to have the same face as K but this time, she has memories of all the 20 lifetimes they have spent trying to kill each other.
The crown prince Kai does not favor the Teir family as there has been too much bloodshed between both clans so when he learns of his father's intent to cast him aside and make his brother the next emperor, He proposes to Mira Teir, the second daughter of the Teir family. she enters the palace as his consort. Kai is prepared to use Mira's family's army and martial background as a pawn to annihilate all his enemies. However, he cannot shake off the feeling that his fiancee plans to kill him.
With knowledge of all their soul ties and repeating patterns, Mira is determined to end this cycle of hate. As court politics, betrayal and secrets ravage the kingdoms of Teir, Mira soon learns that the Antithesis to 20 lifetimes of hate is love.