The daughters of Mahinur and Aras, Bade and Derin, were swapped at the maternity hospital. Bound by a desperate wish to save Bade's life, who has been diagnosed with hemolytic anemia, Mahinur and Aras enter into a marriage of convenience. They intend to have a brother or sister for Bade who could become stem-cell donors for her. While Bade and Derin untangle the tangled events of the past and search for those responsible for what happened many years ago at the maternity hospital, love unexpectedly blossoms between them.