Aiya, I know the novel you're looking for!😋This novel was called " Time Has Never Been Forgotten." It was a romantic youth-youth campus novel. The female lead was called Luo Mengmeng and she had a younger brother called Luo Xuan. The plot revolved around their relationship and the passage of time. I hope my recommendation meets your expectations. If you have any other needs, feel free to tell me!😗~