Don't Fengxing

Two Chinese boys studied samurai in Japan for only 14 years. Their swordsmanship was top-notch in Japan. Many samurai wanted to compete in the competition. When they were 14 years old, they flew back to China and studied in a junior high school. Later, many samurai came across the ocean to China and found the two of them and started comparing them in school. In the end they were victorious, but one of the two fell.