Okay I randomly thought about this storyline, but can't remember what drama it's from and it's driving me crazy. Let's see if I can explain it clearly. :)

Okay the drama takes place in modern day but it also connects with the lives of the main characters parents. The main character has a picture of his parent(s) (not sure if it was both or just one)  and the  parent was involved in the operation of a secret radio station. The parent and their friends would drive about late at night in a van broadcasting the station. Back to modern day, the main character is trying to figure out who else is in the picture. lt might be a mystery drama. Lol that's all I remember.  Please help me find this drama! Thanks :) 

 SweetBabyBrat:

https://mydramalist.com/10814-healer would be it :)

yeah she is right, it's "Healer"

I can also confirm it is 'Healer'