Mood: The mood of the video appears to be melancholic and introspective, with a sense of longing. The presence of ghostly silhouettes and a cat walking alone on the road suggests a theme of isolation and disconnection. The cityscape in the background adds a sense of urban loneliness.

Environment: The video is set in a city at night, with a dark and starry sky. The cityscape is lit up with tall buildings and skyscrapers, but the overall atmosphere is quiet and deserted. The road and sidewalk are empty, and the only living creature visible is a cat walking alone.