The story follows Olivia and Emily, two sisters bound by deep love but ultimately torn apart by sacrifice, jealousy, betrayal, and fate.After their mother dies giving birth to Emily, Olivia, the elder sister, grows up protecting and sacrificing herself for her younger sibling. Their father favors Olivia for her academic brilliance, while Emily struggles in school and feels unloved. Olivia constantly shields Emily from punishment and helps her academically, taking on responsibilities far beyond her age.Just as Olivia is about to sit for a crucial university entrance exam, their father suffers a stroke, forcing Olivia to abandon her dreams to become the family's provider. She starts a small yogurt business to support her disabled father and ensure Emily completes school. Over the years, Olivia sacrifices her education, love life, and ambitions so Emily can succeed.Their childhood friend Rexford, whom Olivia secretly loves, later becomes romantically involved with Emily instead. Though deeply hurt, Olivia suppresses her pain and continues supporting her sister. Emily and Rexford marry, Emily advances professionally, and Olivia remains stuck in an unfulfilling job-quietly watching her sister live the life she once dreamed of.Emily later struggles with infertility, facing intense pressure from her in-laws. Desperate, she asks Olivia to become a surrogate using Rexford's child. Olivia agrees out of love, but the arrangement crosses emotional and moral boundaries: Olivia and Rexford develop a secret sexual relationship beyond the surrogacy agreement.Emily eventually catches them, leading to devastating betrayal. Emily disappears after a car accident, Olivia gives birth but later loses the baby, and Rexford distances himself from Olivia. Guilt, loss, and regret consume Olivia as she searches for her missing sister.Eventually, the sisters reunite through counseling. Olivia confesses her long-held resentment, jealousy, and pain. Emily admits she forgives Olivia but cannot forget the betrayal. Though their bond is permanently altered, a fragile emotional closure is reached.In the end, Rexford finds Emily alive-she has healed, rebuilt her life and later reveals she was pregnant with Rexford's twins at the time of her accident. The story closes on reconciliation, forgiveness, and the painful truth that love, when mixed with sacrifice and unmet dreams, can both save and destroy.