Daughter Wants to Change Mother? OK! You Go Cry When I Marry a Prince

[Husband fakes his death + real and fake daughter + two married women + multiple vests] "You killed my father. You are not worthy of being my mother! I want to adopt you to my eldest aunt!" The daughter screamed while holding her late husband's coffin. I was so heartbroken that I fainted from crying. But unexpectedly, I heard the conversation between my deceased husband and my sister-in-law. "It's obviously your eldest brother Gu Jinnian who died. You faked his death and pretended to be him to marry me. Do you really not care that she died for you?" "If she wasn't the legitimate daughter of the Shen family, how could I marry her? I only have you and Xin'er in my heart." The sister-in-law sighed, "It's a pity that she doesn't know that Xin'er is your and my child, and that her own daughter is the most important person in the house." The husband chuckled indifferently, "She loves Xin'er the most. If Xin'er is clamoring for adoption, she will be reluctant to come and take care of her. Then I can have two wives, wouldn't it be wonderful?" Outside the door, my heart was as sharp as a knife. It turns out that he faked his death and had an affair with his sister-in-law... They secretly exchanged their adulterous daughter for my own flesh and blood! What a couple! If I don't take revenge for this, I swear I won't be a human being! Thinking of passing on? White-eyed wolf will give it to you directly. I will turn around to find my biological daughter and help her become the princess! Want to do both? I will marry the sickly and disfigured crown prince to overthrow your childhood dream! But during the wedding night, the crown prince lifted his mask. That face is exactly the same as that of my deceased eldest brother Gu Jinnian...