I Returned to the Day of the Imperial Physician's Examination and Refused to Take the Fall for My Pregnant Older Sister

My elder sister was the crown prince's chosen bride. Before the wedding, the imperial physician came to our home to check her pulse and make sure she was in good health. But she had me hide behind the bed curtains and let the physician examine me in her place. Only later did I learn that she was carrying our cousin's child, which was why she'd made me take the blame. When the truth came out, my sister knelt before Father and sobbed, “I caught my sister meeting with our cousin in secret. To silence me, she and our cousin knocked me unconscious and ruined my virtue. Now I'm carrying his bastard child. I've brought shame upon our family, and the only way to prove my innocence is to die!” Father flew into a rage. He gave me a cup of poisoned wine and had me killed, then ordered our cousin, who had been carrying on with my sister, beaten to death and thrown into a mass grave. My sister secretly ended her pregnancy, then went ahead and married into the Eastern Palace in a grand bridal procession, becoming the crown princess. When I opened my eyes again, I was back on the day the imperial physician had come to check my pulse. I looked at my arrogant elder sister. We were both daughters of the Shen family, and both of us could become the crown princess. If she could do it, so could I.