Two students, separated in time, are somehow able to talk to each other using amateur radio, one in 1979 and the other in 2000.
Jeong-kwon Kim
Director
Yoo Ji-Tae
Ji, In
Ha-neul Kim
Yoon, So-Eun
Ha Ji-Won
Seo, Hyeon-Ji
Do-Yoon Kim
Ham Radio Club 1
Sang-won Kim
In's Friend 1