Ruleshi can't even get the square color right. The entire chessboard is wrongly rotated by 90 degrees.
(Bottom leftmost square is always a dark-colored square from the perspectives of both players.)

What's even more inexcusable is the Queen being on the King's starting position instead of her own.

Funnily enough canon Ruleshi also got the square colors wrong:

Though her Queen is in the right position (and her King has already castled Kingside). Technically functionally identical to regular chess, but the change in square colors can throw people off their games because they're used to playing and spectating the board set up in the original way.

Curiously enough Ruleshi's inner mindscape in the same scene has her visualizing the board with the correct square colors. Maybe it's intentional by Cygames, with Ruleshi being able to visualize the board "correctly" even with it being rotated 90 degrees. Though more likely it's just an error by Cygames.