In the dark days of the early 1980s, three high school students -- Hae-jeok, Bong-pal, and Sung-ki -- are spending their youth quarreling. One day, Hae-jeok is walking down the street after a gang fight when he happens to see the beautiful Bong-ja. He falls in love with her at first sight, but even though he excels at fighting, his shyness around girls prevents him from saying a word. A few days later, Bong-pal stops coming to school, so Hae-jeok and Sung-ki take a walk up to...more

In the dark days of the early 1980s, three high school students -- Hae-jeok, Bong-pal, and Sung-ki -- are spending their youth quarreling. One day, Hae-jeok is walking down the street after a gang fight when he happens to see the beautiful Bong-ja. He falls in love with her at first sight, but even though he excels at fighting, his shyness around girls prevents him from saying a word. A few days later, Bong-pal stops coming to school, so Hae-jeok and Sung-ki take a walk up to his home. There they find a family picture, which unexpectedly includes Bong-ja. Incredible, Bong-ja is sister to the stupid Bong-pal! They learn that Bong-pal has stopped coming to school to earn money for his family, and what is worse, Bong-ja has started working at a local saloon. The trio, led by the courageous Hae-jeok, invade the saloon, but Bong-ja has already been passed over to a disco bar named Hwang Jae. Although the thugs at the saloon were no problem for our trio, they are defeated by the gangsters at the disco bar. The boss of Hwang Jae makes an unexpected proposal to the brave Hae-jeok. If he can triumph and become a King of Disco at their upcoming disco contest, Bong-ja will be released. But only a week remains, and Hae-jeok doesn't know the first thing about dancing.

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