A young woman in her late teens to early twenties stands alone under a star-filled summer night sky, wearing a traditional Japanese yukata. She holds a handheld sparkler, its golden light flickering gently in the dark. The soft glow of the firework reflects on her thoughtful face, her eyes fixed on the sparkling flames as if lost in deep emotion. The scene captures her from a slightly low angle, focusing on both the sparkler in her hand and her expression. Stars shimmer above, some faint, some bright, enhancing the serene and slightly melancholic mood. The fabric of her yukata flutters softly in the night breeze, detailed with floral patterns. The setting is quiet, intimate, evoking a feeling of nostalgia and introspection, rendered in delicate anime-style linework with rich, vibrant colors and cinematic lighting.