The Reborn Courtesan, the Tyrant Comes to Listen to Music Every Night

In my previous life, the female prime minister was killed by the nine clans, and I was brutally tortured. Reborn as a brothel courtesan, I will use my singing voice to cut open the heart of the tyrant. But when the man who came to listen to music every night lifted his mask, I froze - it was the poison I personally fed in my previous life, and it was also the only thing I wanted to kill in this life.