A medium shot captures a ghostly oni girl with pale white skin, long flowing white hair in a wolf cut style, and pale red eyes glowing faintly, standing elegantly at a lavish party venue. She is positioned centrally in a three-quarter view, her slender arms gracefully extended as her right hand holds a crystal champagne flute delicately by the stem, and her left hand rests lightly on her hip, evoking an ethereal angelic presence with subtle horn nubs and faint spectral aura. She wears an intricate red and white dress with layered frilled skirts, off-shoulder bodice, lace trims, and ribbon accents that hug her figure, adorned with golden filigree. The opulent ballroom background features crystal chandeliers, marble columns, velvet drapes, scattered confetti, and blurred guests in formal attire. Anime illustration style with great quality and best quality, soft volumetric lighting from overhead chandeliers casting warm glows and subtle shadows, vibrant yet cool color palette, intricate textures on fabrics and hair, depth of field, sparkling particle effects, and a mystical, enchanting atmosphere.