Urban Station Assembly by Creative Artists

4 Kings are located in different positions. Each King has 3 court cards laid upon.

Sequentially, 4 Kings vanish and reappear in the pile in front of the magician.
But, only in a blink of an eye, 4 Kings vanish again from this pile and return to the top of each pile.

In the tutorial. I also included 2 variations for diverse ending if palm or lateral palm are not preferred.

Completely impromptu, spectator can examine each card before and afterward.