The mistress just wanted to be bad, but she took off after being replaced

In her previous life, everyone envied Sheng Junwei for her good vision. She married the second son of the Duke's Mansion who was hiding his incompetence. She became the Duke's wife, a first-class imperial decree, and enjoyed unlimited glory. But she didn't know that the man was a complete idiot, and she secretly assisted him in everything. In the end, the man crossed the river and destroyed the bridge, and wanted to kill her. God took pity on her and she was reborn! Unexpectedly, her stepsister who was vying to marry the son of the Prime Minister's Mansion was also reborn! She took the opportunity to snatch her marriage and also wanted to be the Duke's wife! Ha! Since you want to jump into this fire pit, I'm too lazy to stop you! I will burn more paper money for you during festivals. As for Pei Yu, the son of the Prime Minister's Mansion, who is a beast in human form and only uses others as a shield...