"I miss you".

According to NetEase Cloud Music query, it was learned that the black and white silent film shown was from Wang Sulong's "I Miss" song. "I Miss" was sung by Wang Sulong and Wang Heye and was released on June 30, 2023. , and included in the album "The Voice of Heaven Season 4 Issue 10", Wang Sulong graduated from the Composition Department of Shenyang Conservatory of Music and is a male singer and musician in Mainland China.