Mood: The mood of the video appears to be romantic and nostalgic, with a hint of melancholy. The theme seems to revolve around love, relationships, and possibly a story of longing or reminiscence. The use of a moonlit background and the cartoonish illustration of the couple suggests a dreamy and sentimental tone.

Environment: The setting of the video seems to be a fantastical or stylized representation of a romantic environment, with a large yellow moon in the background and a silhouette of a landscape at the bottom. The overall aesthetic suggests a blend of modern and classic elements, possibly indicating a storyline that spans different eras or blends reality with fantasy.