곧 망할 가문의 계약직 딸이 되었다

あらすじ

After dying in an experiment, Anisha wakes up in the past at the orphanage where she was sold to a mad scientist. However, things take a different path when she is adopted by Duke Aubrey to replace his late daughter, Annette. Though having to live as someone else, she decides to enjoy her new freedom while plotting revenge on the scientist. But as she starts to recall facts unknown in her former life, Anisha wonders if it's a side effect of the experiments or if her past holds deeper secrets…