"Goodbye, Missing". The tavern in front of the door is the lyrics of "Goodbye, Missing" sung by Yu Kewei. In the lyrics: Please go back in time and take me home, passing through the tavern in front of the old street. "Goodbye, Missing" is the theme song of the movie "My Girlfriend is a Robot". It was released digitally on September 4, 2020 and is included in the album "Goodbye, Missing".