Born with a Nightmare Seal, Gu Ci has been able to capture souls since childhood. By a twist of fate, her soul becomes linked with Chu Qian's, sealing the Nightmare Seal and leaving two souls in one body. The regent of Li, Chu Nanye, has spent more than ten years searching for his younger sister without success. Their paths cross through a twist of fate, and Gu Ci tells him where to find the Soul Ledger. The one and only price is...
"I want you to petition for an imperial decree and marry me."
A cold, slow-to-warm regent × the chancellor's illegitimate daughter with two souls in one body
Not bad, very good