Ye Xiaomu, a genius from the Royal Academy of Sciences, escaped from the clutches of a professor, but met his childhood sweetheart Yangfan's younger brother. The two began a funny and tearful story. Ye Xiaomu came back this time for a purpose. What is her purpose?
Is it Yangfan that makes her unable to wait, or Yang Zixin that makes her unable to forget?
What happened to Yangfan after she came back that made her resolutely return to England.
Three years later, she met Yang Zixin again in Shanghai.
It tells the story of a sister-brother love story, what will happen in the end?