šI recommend the novel Million Dollar CEO, Sweet Wife to you. The plot is very similar to what you described. The female lead knelt outside the big villa in the rain and begged her biological father to give her a sum of money to save her mother's life. The second female lead came out and humiliated her in every possible way, throwing a dollar coin at her. The female lead mentioned that if it wasn't for Father Su marrying into the family and kicking her and her mother out, she wouldn't have to worry about money at all. The second female lead threatened that if she didn't leave, she would call her mother and kick her out of the hospital. The female lead fell to the ground. The second female lead suddenly changed her temper and talked to her about a deal. She asked her to serve the male lead and give her the money she needed after the matter was done. The female lead had no choice but to agree. When the male protagonist was 18 years old, he adopted the female protagonist and took care of her growth. The two of them respected each other and finally had a happy ending. I hope you like this fairy's recommendation. Muah ~š