Twin sister Su Qinghuan was forced to marry as a substitute, but she secretly fell in love with Jingheng, the second son of the Xiao family. The mystery of her sister's sudden death leads to the bloodline of the witch saint and the curse of reincarnation, and the birthmark hides the secret of soul-changing. The substitute bride deals with poisonous plots and forbidden love. Every drop of cinnabar is love poison, and every reincarnation is a dead end. When the truth tears apart the bloody marriage contract, she must choose between tearing out her heart and breaking the curse or falling into reincarnation forever - killing her lover can end her fate, but her passion will cause three thousand worlds to burn together.
Intention: Choose fate or be passionate and burn with the three thousand worlds?