Liu Mubai had a smooth life for the first twenty years, but after graduation, her family, love, and career suffered a complete failure. In order to change the status quo, she came to a new city - Los Angeles alone. Encouraged by her friends, she decided to study for graduate school while working. During the exam, she met Su Zizhan, the professor of the chosen course. After constant contact, Liu Mubai completely recalled the time he had spent with Su Zizhan when he was young. In the end, the two of them, driven by fate, regained their youthful memories.
