Quick Transmigration: I'm the Female Lead's Younger Sister

The moment she walked toward the little me, I swore that no matter what, I would treat her well. My name is Lin Xi. I seem to be different from everyone else. I transmigrated, but unlike other women who transmigrated, I never seemed to thrive in ancient times. My father was the chancellor of the Dadu Dynasty, and my mother was merely the result of his drunken night. He didn't care for her, and he didn't care for me either. My mother died after giving birth to me, and I lived alone until I was five. When I was five, the servants bullied me. Hungry, I collapsed on the ground, and my elder sister, born of my father's principal wife, saw me. She walked toward me, and from the moment she reached out her hand, I swore I would do everything in my power to treat her well.