Is this a prank? Byun Woo-seok is a Grand Prince on a white horse... Filming a horseback riding scene

Footage of Byun Woo-seok performing a horseback riding scene during drama filming has been released!
True to the concept of a prince on a white horse, it seems like they are creating highly immersive scenes by actually filming on horseback.

I heard that the visuals were so impressive that people on set even wondered if it was a prank, so my anticipation is growing even more!