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.
as Yoon So-eun
as Ji-in
as Soe Hyeon-ji
as Ji Dong-hee
as Security Guard
as Yoon So-eun's Father
as Yoon So-eun's Mother
as Professor
as Ji-in's Friend
as Ham Radio Club 1
as Literature Club 3
as Hur Sun-mi
as Doctor
as Librarian
as Butler
