I was groomed by my grandfather to be the heir. My mother thought I had a cold personality, so she gave birth to a younger sister who was pampered in every possible way. My sister is not like family members and always opposes me. I have always disliked her. It wasn't until my father told me that my sister had been given the wrong baby back then that I checked the surveillance camera and sneered. At that time, the delivery room only accommodated our family. It was clearly someone who did this on purpose. On the day I picked up my real sister, I held the injured girl in the corner and comforted her softly. From now on, my sister has the final say in this family.