Opening
とびら
A girl harbors a deep dislike for her music teacher's insincere smile. Every day in class, she watches him perform a cheerful facade that feels hollow and forced, making her increasingly uncomfortable. The teacher's fake expression becomes a symbol of everything she finds dishonest in the adult world around her.
As she struggles with these feelings, the girl begins to question the nature of authenticity and pretense. Her observations lead her to confront her own perceptions of truth and deception, setting the stage for a quiet but profound internal conflict. The story explores the gap between outward appearances and inner reality through her critical eyes.
