The moon in the sky shines with a strange silver-blue light, and when it falls on the grass, the reflected green light looks extremely deep and mysterious. There was no one nearby, the breeze occasionally drifted by, and the grass and trees made rustling sounds. It did not bring life, but added to the loneliness, as if you were in the deep sea, helpless.
In such a deserted place, a sad flute sound could be heard. The sound of the flute comes and goes, ups and downs, but the tone is slow and uncertain, and gradually becomes confused, as if the player has lost his way, feels wandering and helpless, and unknowingly, it is revealed from the sound of the flute. Not long after, a young man playing the flute and a girl in green came slowly.