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

<Subject 1> is the woman with light brown wavy hair in <Picture 2>, wearing the navy blazer, the white dress shirt, the navy slacks, the black pointed toe pumps and the pearl stud earrings in <Picture 3>.
bright fluorescent light

[Shot 1] framing=bust shot, chest up camera=locked. <Subject 1> brings the cup to her lips and sips, then frowns slightly. <Subject 1> is at her desk, facing the camera.
[Shot 2] At 00:02.333, framing=close-up on the face camera=locked. <Subject 1> sighs and looks up toward the camera, her brow faintly creased, the corners of her mouth loosening. <Subject 1> is at her desk, facing the camera. <Subject 1> (S1) says: <d>[Korean] …여기에 설탕 넣었어? 나 원래 안 넣는 거 알면서.</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.