18 years ago, Kim Su-yeon's grandmother abandoned her after forcing her to donate blood to her twin brother, Kim Hyeon-woo, whom she favors. Rescued and raised as Choi Ji-seon, she grows up in hardship. As an adult, she unknowingly returns to her birth family’s company. There, she faces humiliation while an imposter steals her identity. When the truth is exposed, she reclaims her place, and the fractured family finally reunites.
