Twenty years ago, music diva Zhong Jiahui had her biological daughter swapped by her husband Wei Zhe in collusion with country woman Wang Hongxia. The true daughter Jiang Duoyu suffered endless hardships since childhood and has only one arm, yet she possesses extraordinary musical talent. Admitted to Mingzhu Music Academy, she continuously suffers all sorts of framing by the fake daughter Zhong Mingzhu. As clues like birthmarks and rare blood types emerge, her ancestry is gradually uncovered. After going through hardships, Jiang Duoyu reunites with her mother, Wei Zhe's conspiracy to seize power is exposed, and the crowd of villains ultimately receives legal sanctions.