In the beautiful town of Hengchun, near the sea, Ajia (Van Fan), a young man who suffered a blow in Taipei with a musical dream, watched everything with cold eyes. Although he became a substitute postman with the help of his stepfather, the letters and parcels were piled up in the room by him. As for a parcel from Japan that could not be delivered, he did not return it according to the instructions of the old postman Mao Bo (Lin Zongren), but privately opened and read it: except for a yellowed photo of a girl, there were several letters written 60 years ago. At that time, Japan was defeated in World War II. A Japanese teacher in Taiwan (Kousuke Naka) abandoned his girlfriend who had eloped with the Japanese army when he retreated. On the way back to Japan, he turned his love and regret into words, but the letters were not sent by his daughter until his death. Youzi (Chie Tanaka), a Japanese girl studying and working in Taiwan, wanted to become a model, but was considered outdated and could only be responsible for the performance of the Japanese super "healing singer" Kousuke Naka (Kousuke Naka) in Hengchun. As usual, there would be a band to warm up before Naka Kousuke's performance. Tomoko originally contacted a Japanese band, but the legislators insisted on using a local band. Tomoko had no choice but to work with several local music lovers, including Ajia, who had very different ages, jobs, and personalities - a traffic policeman (Minxiong) who lost his happy life due to an accident, a shop assistant Shuiwa (Jiazi Xiaoying) who had a crush on the boss's wife, and a precocious little girl Dada (Maizi), etc. Since the few people other than Ajia had no stage performance experience, conflicts often occurred in the temporarily formed band, and Tomoko was often furious, and the most experienced Ajia made her the most angry. The band members who had been adjusted frequently - Mao Bo, Malasang (Ma Nianxian) who sold Hakka millet wine, successively replaced the bassist to join the band. The rehearsals were not going well. The day when Naka Kousuke came to Taiwan was getting closer and closer. Tomoko, who was completely disappointed with Ajia, decided to give up her job in Taiwan and return to Japan, but the two had already developed feelings in the friction. Soon, Tomoko saw those letters from 60 years ago in Ajia's room. She was completely moved by the beautiful love story and told Ajia to deliver the letters to the person involved. Although the two did not express their feelings, the power of love is undoubtedly huge. Ajia regained the courage to pursue her musical dream because of Tomoko. When Kousuke Naka was about to perform, the address of the owner of the letter was found, and Ajia was told by Tomoko that she had received a job invitation from a Japanese record company.