In this endearing supernatural love story spanning two decades, a university student finds himself communicating with a female classmate from the same school through an antique ham radio.
Yoon So-eun
Ji-in
Soe Hyeon-ji
Ji Dong-hee
Hur Sun-mi
Security Guard
Yoon So-eun's Father
Yoon So-eun's Mother
Professor
Ji-in's Friend
Ji-in's Friend
Hospital lady
Doctor
Butler
Librarian
Ham Radio Club 1
Ham Radio Club 2
Literature Club 3
Literature Club 4
