This song is "Lonely City".

By querying QQ music information, the lyrics of "Lonely City" are: Love and hate in the world, wandering in the world, looking back and missing her eyes, drunk alone and missing her, when will you rest, who will stay for you, fallen leaves follow the wind Falling flowers fall in late autumn.

"Lonely City" is an ancient song, released in August 2021. It was written and composed by Yanhe and sung by Mr. Luo.