Heroine na Imouto, Akuyaku Reijou na Watashi

After meeting her adopted younger sister, a girl named Mishuli, the duke’s daughter recalls her past life. These memories reveal that Mishuli is the heroine of a known story. In that tale, a version of the girl mistreats her sister, but the real one becomes overly protective and dotes on Mishuli. Eventually, she discovers that Mishuli’s best future is tied to the story’s outcome, which includes grim possibilities like execution, suicide, or exile. Despite this, the girl remains resolute, choosing to sacrifice her own fate for her sister’s happiness. The narrative follows her unwavering determination to ensure Mishuli’s well-being, regardless of the cost to herself.