After Rebirth, Return to Before the College Entrance Examination

My sister and I were admitted to high school together by copying my test papers. But she was idle all day long and skipped classes all day long. As the college entrance examination was approaching, my mother actually asked me to undergo plastic surgery to look exactly like my sister. My sister relied on my grades to go to Tsinghua University, but I couldn't even go to junior college. My mother bought me a high insurance policy, locked me in the house and burned me alive. They took double the compensation but dumped my body in a mass grave, leaving me with no peace after death. When I opened my eyes again, I was back on the eve of the college entrance examination.