Father's letter is a memo White Day: A Labyrinth Named School (Remake).
It is exclusive to the PC/PS4 remake version.
You can see this message when you play the 'Yoo Ji-min' route.
Location[]
It is found in the drawer of desk at the Chairman's Office, 1st floor of New Building.
Transcript[]
2017[]
What have you done?
Do you even realize what will happen if
your grandfather finds out?
I don't care anymore. Stop what you're
doing and come back!
무슨 짓을 하고 다니는 거냐!!
할아버지 귀에라도 들어가면 어쩌려고...
여러말 필요 없고... 당장 그만두고 내려와라!!
명심해라!! 당장 그만 둬라!!Gallery[]