Mood: The mood of the video seems to be energetic and lively, with a theme of youthful enthusiasm. The presence of four identical girls in school uniforms dancing suggests a playful and carefree atmosphere, possibly a music video or a fun educational setting.

Environment: The environment appears to be a school setting, given the uniforms the girls are wearing. The background seems to be a classroom or a school hallway with a clock on the wall, indicating a typical school environment.