Zhang Yan was unjustly imprisoned for thirty-one years. After being released from prison, he was reborn and returned to the time before the crime. He was accidentally bound to a desire demon system that could absorb other people's emotions and convert them into emotional values, which could strengthen himself and control his seven emotions and six desires. He first designed to anger Yu Xianghui and get him arrested, and then manipulated Yu's mother and lawyers to fight among themselves to disrupt the reconciliation offensive. Relying on clues from his past life, he stole 100 million in cash from corrupt officials and laundered his money. He rescued policewoman Gu Yuxin in a bar and made him fall in love with him. Since then, he has successively sent enemies such as the remnants of the Yu family, He Yuan of the Black Tiger Gang, and corrupt official Zhao Guanhua to justice, subdued Yu Xianghui's fiancée, controlled lawyer Tan Qing, and purchased luxury cars and mansions to achieve financial freedom.
