Blue haired anime girl with ice sword at halloween party

a girl with long blue hair with a smiling face, dark blue eyes, snowflakes in her eyes, a long dress with red jewelry and a fluffy white coat with cloud patterns on the coat, elegant shoes made of dark ice, the girl fights with a sword made of dark ice emanating an icy aura, Halloween party full of ghosts and monsters and candy, anime. joy, girl, red, purple, blue, black, magic circle, spider, torii gate, sun. joy, girl, red, purple, blue, black, magic circle, spider, torii gate, sun, a winter base made of many dark blue triangles with golden ropes, light blue lights during a snowstorm, large protruding elongated rocks covered with snow,