I'll Avenge You, My Sister

Years ago in an orphanage, the younger twin gave up her chance to be adopted by a wealthy family to her sister, who had a heart condition. As adults, the older sister, now a wealthy heiress, spares no expense in searching for her sibling. Meanwhile, the younger sister suffers through a difficult life in her in-laws' home, deceived and eventually harmed to death. The older sister vows to personally avenge all the injustices her sister endured..

Years ago in an orphanage, the younger twin gave up her chance to be adopted by a wealthy family to her sister, who had a heart condition. As adults, the older sister, now a wealthy heiress, spares no expense in searching for her sibling. Meanwhile, the younger sister suffers through a difficult life in her in-laws' home, deceived and eventually harmed to death. The older sister vows to personally avenge all the injustices her sister endured..