Sorry, I Refuse to Be the Heiress

She was originally a wealthy heiress, but after being abducted by human traffickers, she was raised by a madwoman. It wasn't until her father developed kidney failure and urgently needed a donor that he thought of finding his second daughter. Unaware of her father's true motives, she agreed to return home on one condition: she would bring her adoptive mad mother with her. Her biological sister, worried that she would take away her luxury and the CEO she was betrothed to since childhood, repeated