Mood: The mood of the video appears to be energetic and lively, with a sense of excitement and dynamism. The theme seems to be related to music or dance, given the group's synchronized movements and the overall atmosphere.

Environment: The setting appears to be a stage or a performance venue, with a staircase visible in the background. The lighting is dim, with a blue-green hue dominating the scene, suggesting a night-time or indoor setting.