Find a romance novel

The male protagonist was very down and out when he was young. Once, on the female protagonist's birthday, he happened to see the male protagonist and asked him to celebrate his birthday with him. Later, the male protagonist would come to the female protagonist's house to eat from time to time. The female protagonist would always be at home and prepare delicious food for him. After the male protagonist was adopted by a very rich family, he would still go to the female protagonist's house. Once he reached the female protagonist's house, he would be very relaxed. The adopted male protagonist's family had a very cute and innocent sister. She fell in love with this very outstanding brother. Later, before the sister's father died, he handed the company and daughter to the male protagonist and asked the male protagonist to marry his daughter. However, the male protagonist did not agree. Later on, he had no choice but to sign a contract with his sister to fake the marriage for a year to let his sister know that he could not fall in love with her. However, when he went to that house to look for the female protagonist, the female protagonist disappeared. Only then did he realize that other than this place, he had no other way to contact the female protagonist. In fact, the female protagonist told him that they were married and that the female protagonist had a weak heart. He couldn't be too happy or too sad. This time, he went abroad for a checkup. Later, the younger sister understood and took the initiative to file for a divorce. The outcome was good.
There were two other books. One was about his sister, and the other was about his sister's boyfriend's brother.
Sorry for the trouble, everyone.

Answer 1

As a fan of online literature, I don't have the ability to search for online literature directly. However, if you are looking for a romance novel, I can recommend some classic works such as " Silent Sheng Xiao,"" A Smile Is Alluring,"" Shanshan Come and Eat," etc. These novels were very popular, with rich plots and wonderful characters.