I'm a poison refiner. Growing up in a poison den, I developed a body immune to all poisons. When I was fifteen, people from the Duke's residence came looking for me. "Miss, it's time to come home." I thought this was my chance at a new beginning. But as soon as I stepped into the residence, the fake heiress who had occupied my identity for fifteen years gave me a harsh welcome. She personally brought me a bowl of medicine. "Elder Sister, you've suffered so much. This is a nourishing eye soup I specially prepared for you."