[Reference images]
<Picture 1> is the location; keep its layout and furnishings, with all surfaces clear of small objects.

<Subject 1> is the camera in this clip — only his hand and forearm appear in frame, in the sleeve of the outfit in <Picture 3>.
bright fluorescent light

[Shot 1] framing=wide establishing shot camera=push-in. bright. This shot shows the location in <Picture 1>, with no one in frame.
[Shot 2] At 00:01.625, framing=bust shot, chest up camera=locked (POV shot from <Subject 1>'s viewpoint). <Subject 1>'s hand offers a cup of coffee toward the camera at an arm's length. <Subject 1> (S1) says: <d>[Korean] 여기있습니다</d>

No text overlays, no subtitles, no watermark, no extra people in the background, no camera shake, no jump cuts.
The soundtrack is the room itself and nothing else: the low steady hum of fluorescent lights, faint air movement, the small sounds of paper shifting on a desk. It sounds like a real place recorded on location, not a studio.