Yalkae, a Joker in High School

Yalkae, a Joker in High School is a 1977 South Korean comedy film starring Lee Seung-hyeon, Kim Jeong-hun and Hah Myung-joong, and directed by Seok Rae-myeong. It was based on Cho Heun-pa's bestselling novel A Legend of Urchins (Yalgaejeon).

Plot
Na Du-su (Lee Seung-hyeon), nicknamed "Yalkae" (meaning "cheeky, cocky person"), is in his second year of high school and acts like a troublemaker.

When approached by Ho-cheol, Du-su refuses to compensate him.

Cast

 * Lee Seung-hyeon as Na Du-su
 * Kim Jeong-hun as Ho-cheol
 * Hah Myung-joong as Baek Sang-do
 * Jeong Yun-hui as Na Du-ju
 * Kang Ju-hee as In-suk
 * Jin Woo-young as Yong-ho

Korean film stamps
In 2009, Korea Post issues Yalkae, a Joker in High School as part of the third series of Korean film stamps, which also includes The Road to Sampo, Never Ever Forget Me and Chilsu and Mansu.