Lanwan. According to Kugou Music query, the line "Wave my hand and I will watch you go" is selected from the song "Yuan". The lyrics are written by Sun Yi, the composer is Liu Jiachang, and the original singer is Lan Wan. The release date is April 7, 2023. The first sentence of this sentence is: Don't forget the people in your hometown, and don't forget the true love for you. The next sentence is: But I don't see you looking back, you disappear in my eyes.