At nineteen, Ji Ning inexplicably found herself with a biological daughter and was kicked out of her adoptive father's home. Five years later, she returned to the country with her daughter, Xi Xi. By then, she had become a mysterious designer, a formidable businesswoman, and a highly skilled fighter. When her long-lost biological family finally found her, her five brothers sided with the girl who had grown up alongside them as their "little sister," showering Ji Ning with sarcasm and scorn. Refusing to fight for their affection or acknowledge them as family, Ji Ning only wanted to uncover the truth about her daughter's origins. A chance incident at the airport led her to rescue a little boy and brought her together with Bo Yichen, the head of the Bo family. As hidden identities are gradually revealed, the truth slowly comes to light, and her brothers go from indifference to remorse and finally to genuine repentance.