Komachi (Kenichi Matsuyama), who works for a real estate company, and Kentai Oyu (Yingtai), who works in his father's ironworks, are a pair of veritable railway fans. Omachi likes to enjoy the scenery outside the window while listening to music, so he even ignores his girlfriend's feelings. Xiaoyu has a deep knowledge of machinery and can tell the type of engine and the manufacturer by sound alone. The two, who are rather dull in love, become friends because of their common hobbies, and trains are a topic they will never get tired of. One day, Xiaocho was transferred to the Kyushu branch to work. Xiaoyu, who was sad because he was lovelorn, took the youth 18 to visit his friends in Kyushu. They not only found Xiao Tietong, but also accidentally solved their work and love problems. On a sunny day, let's walk around by train. This film is the legacy of Japanese director Yoshihiro Morita. The characters in the film are all named after the train. The film earns a total of 80 trains and involves 20 lines.
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