Yoon So Eun played by Kim Hanuel is so shy, she had a thing for the upperclassman Ji Donghee but always to shy to be upfront about it.

I ship this couple too….. Yoon So Eun and Ji Dong Hee…. This is a sad love story…..

This movie is almost like a time travel movie…….It goes back and forth from 1979 to 2000. So the characters from different time line have no idea what the ham users are saying. So Eun is a college student in 1979 who gets a hold of this ham radio and she’s able to communicate with another ham user that lives in the year 2000…….Yoon So Eun, played by Kim Haneul is head over heels for her upperclassman Ji Donghee and Yongwoo oppa plays this character so well. Watching this movie makes me feel like Soeun too all shy when you are around someone you like……