Lim Min-young has spent years suffering in silence as her half-sister, Lim Hye-ri, takes away everything that matters to her. Her pain deepens when Choi Shi-hyuk, the boy who once crossed paths with her in childhood, mistakes her for Hye-ri, leaving Min-young devastated by yet another rejection. Exhausted by the endless hurt and injustice, Min-young decides to abandon her old life and leave everything behind. Along the way, she meets Hyun-woo, whose presence offers her a chance to heal and discover a different kind of happiness. Meanwhile, Shi-hyuk eventually uncovers the truth about the girl he misunderstood and realizes the depth of his mistake. Filled with regret, he desperately tries to find Min-young and win her back. But after everything she has endured, Min-young must decide whether to give Shi-hyuk another chance or embrace the new life and love she has found with Hyun-woo.