醒來後,我的未婚夫成了妹夫

Rosa and Emma are sisters, living their fantasy life in a castle their father had inherited, Rosa is engaged to Edward Douglas. As a result of an unfortunate accident, Rosa fell into a coma, but the marriage was not called off, and Rosa's name was replaced by Emma. Times goes on, the couple find themselves in difficult situations, and Rosa comes back to life after six months. When she opens her eyes, the growing tension urges Emma to confess the truth to Rosa...