Freelance writer A Sheng (played by Ke Youlun) won the million-dollar novel award. At the award ceremony, he vowed to take back his ex-girlfriend doughnut (Xia Yuqiao). All the stories begin when A Sheng's mother (Pan Lili) discovers that she has hematologic cancer. Dashan (Liang Shi), A Sheng and A Yun (Liang Shi) have been close to their mother since childhood, and they talk about everything. One day, Ke's mother was accidentally injured and bleeding profusely. Ke's mother was shocked that something was wrong and found that she had a blood tumor after examination. However, the eldest son Dashan is busy with doctoral thesis and laboratory research, the second son Asheng Institute has postponed his work as a writer, and the third son Ayun is still in college. Mother Ke endured anxiety until she could no longer conceal it, and her family knew that her mother was seriously ill.