A manhwa about a female mc who was adopted by the duke(?). She was a daughter of the royal family. Her power was being drained from her by her stepsister (the daughter of her father's new wife) who stores it in her jewelry, if I'm not mistaken.
The Emperor and his son, the prince has discovered her real identity and wanted to take her back but she doesn't need them anymore.
Additional: I remember that there's a chapter where the stepsister raised a magical beast and mc manipulated it to reveal the truth but she also accidentally revealed her power which is a clear indication of royal blood
A manhwa about a female mc who was adopted by the duke(?). She was a daughter of the royal family. Her power was being drained from her by her stepsister (the daughter of her father's new wife) who stores it in her jewelry, if I'm not mistaken.
The Emperor and his son, the prince has discovered her real identity and wanted to take her back but she doesn't need them anymore.
Additional: I remember that there's a chapter where the stepsister raised a magical beast and mc manipulated it to reveal the truth but she also accidentally revealed her power which is a clear indication of royal blood