In the fantasy world of the Nine Counties, between the four wastelands, the unkind demons of heaven are raging. The young master of the dragon clan returns, and the princess of the god clan is reborn. The demon exorcist Xinghe and his junior sister Mu Qing go to slay the demons. It is like stepping into a mysterious picture with blurred light and shadow. There is no choice between life and death, love, hate, and resentment. How should people who long for beauty choose their own life journeys? As the sun that reflects the world falls in the west, the fantasy world of Jiujun welcomes new guests and another long night. The battle between gods and demons is imminent, but the flowers of the past life on the green vines are still blooming beautifully. Sadness and pain are coming. Who has been waiting for a thousand years at the end of the past life, just for this gorgeous reunion. One thought becomes a Buddha, one thought becomes a demon. Life and death, separation and joy, the joys and sorrows of the past, where does it all go? And on this night, listen to a long song until the rising sun breaks through the rich darkness between heaven and earth.