Mood: The mood of the video appears to be romantic and intense, with a sense of longing. The theme seems to revolve around a passionate and possibly tragic love story, given the title 'The Last Tale of Kaatnaat'. The emotions conveyed are those of desire, love, and possibly despair.

Environment: The setting of the video seems to be a dark, rustic, or natural environment, possibly outdoors, given the stone wall in the background. The focus, however, is on the intimate moment shared by the two characters, suggesting that the environment, while present, is secondary to the emotional and romantic narrative.