By subway, take line #4 (the blue line) toward Oido (오이도) and get off at Chungang Station (중앙역). Chungang Station is about 60 minutes south from Seoul Station (서울역) and about south 40 minutes from Sadang Station (사당역).
As you approach Chungang Station, look to your right (north side) to see the following view. My office is in the building shown by the red box.
To reach the office, exit Chungang Station on the north side, walk through the underground walkway which crosses below the main road and come out from the #3 exit. You'll then find yourself with the following view. Enter Dongseo Core Building through the entrance shown.
Take the elevator to the 6th floor and then follow the hallway to the back side (north) of the building and look for room #614. The door is unmarked, so you won't actually see the number 6-1-4, but mine is the one shown by the red box here:
Knock, and if I'm there, I'll welcome you in:
