In an ancient land, a king is enchanted by a nightingales song, and wonders that such a plain little bird can sing so beautifully. People from all over the world come to hear her sing. One day, the king receives a mechanical bird made of gold and jewels, which sings the same beautiful song as the nightingale. He is fascinated by the mechanical bird and ignores the nightingale, which flies away. However, the king learns that there are more important things than gold and jewels.