I have been burdened with infamy and guilt since I was born because I am the daughter of a mistress. My real wife's daughter and I were born at the same time, and they were recorded in her name. My dad told the public that his wife gave birth to twins. But after I was born, my life was worse than that of a dog and I was bullied all the time. Until the day I met my true love and got married to a wealthy young man from a wealthy family, my dad drank too much and revealed my true identity in front of everyone. It turns out that the sister who constantly calls me a bastard is the mistress's daughter. My father was afraid that my mother would abuse the mistress's daughter, so he secretly switched my sister and me in the delivery room.