The Fake Daughter Is the Demon Who Supports Her Younger Brother

My mother's adopted daughter was brainwashed into a brother-supporting demon after she recognized herself as her biological parents. During college, all the living expenses my mother gave her were used by her to support her biological parents and younger brother. After my mother passed away, she became more and more unscrupulous and started thinking about my family's inheritance. In my last life, I discovered her plot and was eventually killed in a fire by her. When I opened my eyes again, I went back to three years ago. She jumped into the fire pit by herself and wanted to take me with her. It was simply a fantasy!