The Doomed House's Contract Daughter

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… ___ I thought I had regressed from this ragged life, but why has my time-limited life remained the same? I'm ruined... is this how I should live my life...? "This time, I'll get adopted by a normal family, and live in comfort for the rest of my life!" Step by step, I'm going to take revenge against the one behind my death, and I'll protect what's left of my small and precious life! However, did I put in too much effort? "Anisha, you're perfect." "I'm going to make this child a future professor." All I wanted was to survive... "Well, somehow, you’ve passed. I'll have to adopt this brat." I ended up with a tycoon I didn't expect. One whose household will be massacred in a few years! How do I know that? Me too! I didn't want to! Know that! But what can I do? The milk has already been spilt. I'll just live in bliss while acting as the real daughter during my 5 years contract, then I'll leave! However... "...I happened to pick this up on the way home." "Father, you're the best!" "I know." ...Something's wrong. "I checked this out 'myself', and inspected it 'in person'. There's nothing to be grateful for." "Father, you're a genius!" "I know this too." No, well, something's REALLY wrong. ** I became fond of this unique and strange family, but... "The five years contract we signed," "Let's nullify it." While looking straight into my eyes, dad announced the termination. "I can help you, but you'll still die anyway." Not only that, But death came under my nose too. Will I be able to survive?