Christina, born as a daughter of a ducal house, one day gains memories of her past life when she meets her adopted sister, who was taken into the mansion. Through this knowledge, she learns that this world is a story in which her sister, Mishley, is the heroine. In that story, Christina was cast as the villainess who tormented her sister, the heroine. However, the real Christina, disregarding such knowledge, had become an utterly devoted older sister who showered her sibling with affection.

However, someday even such a Christina will realize

That her beloved sister's greatest happiness lies in the ending of the story she recalled from her past life.

What awaits Chris in return are ruinous choices: execution, suicide, or exile. Even knowing these paths to destruction as the villainess, which are certain to come if she follows the story from her past life, she will surely not hesitate.

Everything is for her sister's happiness.

This is the story of a ducal daughter, a devoted older sister, who disregards her own fate and will eventually become the villainess for her sister's happiness.

*Published by PASH! Books.