Mood: The mood of this video appears to be romantic and sentimental, with a focus on love and relationships. The use of the phrase 'a melody of love story' and 'I see you by my side' suggests a deep emotional connection between two people. The overall theme seems to be a heartfelt and emotional exploration of love.

Environment: The environment or setting of the video is not explicitly shown, but based on the text and the aesthetic, it appears to be a quiet, intimate, and possibly indoor setting. The brown and gold color scheme evokes a sense of warmth and coziness, suggesting a comfortable and private space.