Please add TFR to DPRK airspace, everything in Pyongyang FIR. It says: no aircraft can enter unless flying to or from the DPRK.
Some people don’t know about the restriction, while some of them would like to fly without restriction over DPRK.
Similar post was created last week, check out Chris’s response.
By the way, if you use fpltoif, the FPL will keep you out of the DPRK airspace.