After the end of World War II, a nation was completely divided into two countries with different systems, which made people wandering in a foreign country look forward to it and did not know where their hometown was. In the 1970s, Japanese-born Korean Song Hao (Jing Puxin) returned to his hometown of Korea at the behest of his father to support the construction of the communist cause. Who would have thought that the difference was that in the 4th century, Songhao started a family in his hometown, and his beloved sister Riki (Sakura Ando) also grew up. On this day, messages of joy and sadness came at the same time. Songhao was specially approved by the government because of his illness and was able to go to Japan for three months of treatment. After a long separation and reunion of the family and former friends and relatives, complex emotions spread in each other's hearts. The film was adapted by Japanese Korean female director Liang Yingji based on her family's real experience, and won the top 10 film and best actress award (Ando Sakura) in 2012.