Mood: The mood of the video appears to be confident and stylish, with a hint of edginess. The theme seems to revolve around relationships, specifically replacing an ex-boyfriend, as indicated by the text 'BOYFRIEND Replace'. The overall emotion exuded is one of swag and self-assurance.

Environment: The setting of the video seems to be an urban cityscape, possibly in a Western country, given the architecture and the cars visible in the background. The city appears to be bustling, but the focus is on the individual, suggesting that the video might be more focused on the artist's personality and style rather than the city itself.