3 Book(s) Related to billionaire after abandoned

My foster mother abused me, and my stepsister was a despicable bitch who often bullied and framed me. This place was no longer a home to me; it had become a cage, a living hell!
At this moment, my biological parents found me and rescued me from hell. I had originally thought they were very poor, but the reality left me utterly astonished!
My biological parents turned out to be billionaires, and they doted on me immensely. I became a princess with a fortune worth billions. Not only that, but I also had a handsome and wealthy fiancé...
（I highly recommend a captivating book that I couldn't put down for three days and nights. It's incredibly engaging and a must-read. The title of the book is "Forbidden Love," and the author's name is Olivia. You can find it by searching in the search bar.)

My foster mother abused me, and my stepsister was a despicable bitch who often bullied and framed me. This place was no longer a home to me; it had become a cage, a living hell!
At this moment, my biological parents found me and rescued me from hell. I had originally thought they were very poor, but the reality left me utterly astonished!
My biological parents turned out to be billionaires, and they doted on me immensely. I became a princess with a fortune worth billions. Not only that, but I also had a handsome and wealthy fiancé...
（Do not open this novel lightly, or you will become so engrossed that you won't be able to stop reading for three days and nights...）

For eighteen years, I had been giving blood transfusions to my sickly younger sister, practically becoming her "mobile blood bank." The countless needle marks on my arms bore witness to my sacrifice.
However, at my sister's coming-of-age ceremony, she not only stole my boyfriend but also revealed a secret to me—I wasn't even my parents' biological daughter!
I was kicked out of the house and sent back to my poor biological parents in the countryside.
When I returned to my biological parents, I discovered they weren't poor farmers at all. On the contrary, they were incredibly wealthy and powerful tycoons!
I instantly became the daughter of the richest family!
My sister and adoptive parents were filled with regret when they learned the truth. They came to me, knelt at my feet, and begged for my forgiveness.
How should I punish them?