1978 In the spring, Kim Hyun-soo transferred to a notorious middle school named Zheng Wen in Mazhou Street. Because of the military government's intervention in the campus, the teachers in the school violently abused students, verbally humiliated students on the podium, brutally tortured students on the playground, and tortured students at any time in the classroom, all of which created brutal and autocratic discipline and management habits. Kim Hyun-soo, who just transferred to this school, is still a model student. At first, he was full of resistance and resistance. He is even the only student in the class who can solve math problems smoothly in front of the blackboard. By chance, he met Jin Youzhi, a healthy, strong, self-respecting "bad student" who treated his friends sincerely. They soon became friends and fell in love with the beautiful senior girl Jiang Enzhu. But because of shyness, Kim Hyun-soo missed the opportunity to express his love to Eun-ju again and again, and Jiang Enzhu's love made him more miserable. Youzhi and Hu Zhong fought fiercely on the rooftop. As a result, they were beaten black and blue, leaving school in a gloomy mood, followed by Jiang Enzhu. Kim Hyun-soo's patience and tolerance finally broke through the limits of youth and began to learn Bruce Lee nunchakus silently. In the end, he defeated Hu Zhong on the roof of the school, walked past the bloody and dumbfounded teacher, and cursed the schools all over North Korea angrily in the corridor. A year later, Kim Hyun-soo, who has matured a lot, met his friend at the gate of the cinema. They playfully imitate the scenes in Bruce Lee's movies, and the movie advertisement in the background is Jackie Chan's Drunken Boxing. My friend said that the era of Bruce Lee is far away. Kim Hyun-soo said that Bruce Lee is always the best.