After 20-year-old sophomore Chu Yanyan accidentally lost his memory, his childhood sweetheart Bai Xu pushed him to take care of his brother Bai Zhiyuan. She looked through old diaries and mistakenly thought that her crush was this abstinent older brother, who turned into a straight-ball sweet girl and took the initiative. Bai Zhiyuan, who had hidden his love for many years, completely lost control and started to indulge in the ultimate love. Bai Xu only regretted it after losing it. The female supporting characters Yun tide and Hua Shuling frequently instigated and set up traps out of jealousy. Under Bai Zhiyuan's strong protection, Chu Yanyan grew up, and their relationship became stronger.
