Mood: The mood of the video appears to be romantic and intimate, with a sense of longing. The theme seems to revolve around a passionate and possibly tumultuous relationship, given the title 'Hate Story IV' which suggests a complex emotional narrative.

Environment: The setting of the video is indoors, likely in a luxurious or upscale room given the decor. There is a mirror on the wall, a lamp, and a decorative vase, indicating a well-furnished interior. The warm lighting and the posture of the couple suggest a private, intimate moment.