A vast grassland covered with golden grass, swaying gently in the breeze. The sky is deep blue, with almost no clouds, and only a few white clouds dotted it, which looks particularly quiet. In the middle of the grassland, a man in black stood, as if enjoying the quiet natural scenery. Rolling hills can be seen in the distance. The color of the hills is darker, contrasting with the bright sky and grassland. The whole picture gives people an open feeling.