Vertical 9:16 video, 5 seconds, one continuous shot with no cuts. Anime style, da...

Vertical 9:16 video, 5 seconds, one continuous shot with no cuts. Anime style, dark cinematic scene, high contrast. Completely flat pure black background, nothing else in the frame, no character, no figure, no floor. In the center of the frame there is a large circular cross-section of a muscle, shown straight on, filling most of the frame, as if the muscle had been cut across and we are looki...