Mood: The mood of this video appears to be nostalgic and sentimental, evoking a sense of reminiscence and fondness. The theme seems to revolve around the college experience, specifically the first day of college, which is often a memorable and emotional event for many students. The use of a sepia tone and the presence of a man's face with a contemplative expression add to the nostalgic and introspective atmosphere.

Environment: The setting of the video appears to be a college campus, with a building and trees visible in the background. The overall aesthetic suggests a daytime setting, possibly during the morning or early afternoon, with a warm and sunny atmosphere. The college building in the background seems to be a significant part of the setting, possibly symbolizing the beginning of a new chapter in life.