The abnormal things in the world, the abnormal things in the world, and the abnormal people in the world are demons. Demons, or vegetation, or stubborn stones, or birds and beasts, or mortals live forever. Longevity is also a demon, the same as heaven and earth Longevity is the great demon of heaven and earth. Therefore, those who want to become immortals must first become demons. Therefore, there is such a story about a boy in a small town who desires longevity and soars to the sky, so he does not hesitate to become a great demon.