I Cover the Sky with a Chessboard, and All Living Beings Are Chess Pieces

The Great Game of Chess is to repair the scars of the sky, use the chessboard to cover up the secrets of the sky, and use all living beings as chess pieces. The black and white chess pieces fell into the mortal world and turned into "literary and heroic spirits". Soon after, "Xia Ke" and "Literature Ke" appeared in the human world. This is a game. Who is the chess piece and who is the chess player?