The film "the most Beautiful parting in the World" is adapted from South Korean writer Lu Xiqing's original book of the same name and TV series. Lu Xiqing wrote in memory of his mother, who died of cancer, that this novel depicts the life of an ordinary and great mother. Mother (Pei Zongyu is acted the role of) after mother-in-law suffers from Alzheimer's disease to take care of her for 15 years, carry the heavy burden of the family alone, work for the family ceaselessly. While the husband (Kim Ka-soo) does not care about family affairs, the daughter falls in love with a married man, and the son is also facing the difficult situation of the college entrance examination. Everyone in the family seems to have their own troubles and their own things. She went to the hospital where her husband worked, but her husband did not want to see her at work because he was a low-paid doctor; she went to see her daughter at work and wanted to have lunch with her, even if it was just a simple bowl of Wudong noodles, while the daughter was busy dating her lover and pushing her off; her distressed son was admitted to college and went on a drink date with his girlfriend to live his own happy life. At this time, she was found to have bladder cancer and was in the terminal stage of the cancer. Everyone in the family changed their attitude when they found out that their mother was about to die.