The lyrics of the song "September-san" talk about a person (she) who had dreams for herself, but ended up giving them to someone else. She can laugh at this now. The protagonist loves the feeling of summer and wants to stay a little longer in that moment with her partner. She believes that she can find a reason for her partner to smile, and she thinks that September is just an ordinary month that can connect people. The magic that felt more real than reality has faded away, but she believes that the feeling of being embraced can still make her heart skip a beat. She feels that her father was searching for the color of the sky drying up, and during those times, she was waiting alone, feeling aching emptiness. The song talks about how September is important and can bring hope and dreams. The protagonist believes that her voice can reach her partner, and they can go through life together. Even if there is no meaning to her voice echoing and even if summer is not there, her partner's laughter and the protagonist's voice can connect them. Love is a theme in the song as well, with the protagonist singing about the feelings that love has expressed and how people laugh at them. But at this moment, she believes that her voice can reach her partner and that when their hands touch, their hearts will tremble. The song concludes by saying that even if the protagonist is just an ordinary person, with her partner, she can feel that her voice will resonate. Overall, the song emphasizes how September is a season that connects people and brings about feelings of hope and love.
