Feng Jianwei loved Rong Yanchen for ten years. She thought this person who protected her since childhood would be her lifelong destination. Until he held another woman's hand and publicly announced their engagement news. Everyone was waiting for her to break down and cry, but she was unusually calm, packed her luggage, submitted the application materials for a cutting-edge scientific research project, and resolved to completely withdraw from his life. By the time she completely disappeared, Rong Yanchen came to a sudden realization. That girl whose eyes were once filled only with him would never wait in place again. This time, it's his turn to run, desperately wanting to win her back.