The song is called: Blue Sea and Black River.

"Blue Sea, Black River" is a popular Douyin song composed by Xu Yiming and written and sung by the singer Zhang Youdao. Many users on the Douyin app are using this song as the background music of their videos. Zhang Youdao, a Chinese online male singer, is known for his masterpieces: Mountains of Swords and Seas of Fire, Several Dreams of Returning to the Tang Dynasty, and Ten Years of Loneliness in the Army.

The lyrics are as follows: Come on, show me, my heart is beating and my love is burning; blue sea, black river; wandering around, waiting for Po Meng; carefree and trembling, separated by the imperial city; I am no longer your wife; dream It's a dream, picked in a dream; millions want to leave; I wake up, but I shouldn't; when I wake up, I have already left; one move defeats this emotion; two moves defeats this master; three moves take over the world; I dominate the world. Dead Sea.

The south returns to the south, the north returns to the north; the play within the play, facing the north; falling in love with beauty day and night; leaving love without regrets; the world is full of mundane things; the mundane things are turbid, I am everyone; I kill the demon soul before I can be my master; the voice says the way of the king; the brilliant way, I say the emperor's way; the way of the world, it is not the way; why do I walk the king's way; the peach blossom bank, the peach blossom bank; the beauty caress me Peach Blossom Fan; Peach Blossom sighs, Peach Blossom praises.

It’s another year of peach blossoms; ten miles away, there are peach blossoms on the shore; the beauty is still beside the peach blossoms; the city is full of peach blossoms; the peach blossoms are painted into peach blossom fans.