Flight Man takes place in Taiwan in 1933, when the country was under Japanese occupation after the First Sino-Japanese War. The Taiwanese people have signed a petition to have the Japanese establish a Taiwan council, but instead this merely provokes the Japanese police to hunt down and round up everyone who signed the petition.
In early Republic of China when Taiwan was still under Japanese occupation, people were oppressed, and their condition was miserable. A Kung Fu coach from China was invited to Taiwan. His name was Wan Chin-san. Mr. Wan established a Kung Fu School in a small village and refused any Japanese to be his student. For this reason, he was assassinated. When his son, Wan Ming-Chieh, heard the terrible news, he came to Taiwan in search of his father.