Anime girl posing with ornate knife under night fireworks

a girl holding an ornate knife in an attacking position, a nighttime fireworks display over a fantasy port city, the girl is surrounded by crystal weapons stuck in the ground around the girl, the girl has a smiling face, anime a girl with long hair in a bun with two colorful wooden sticks with gold decorations at the heel, her hair is black with dark green hair tips, the girl has a nostalgic expression, a long traditional green blouse with a lace sash, three white bows tied around the neck, a long open black sweater with short sleeves with a logo of a blue crystal cut by a sword, a short dark green skirt with large layers and under the skirt long black pants, elegant low-heeled black shoes with gray soles and decorative laces,