A medium shot from a low-angle perspective featuring a Phantom Mist Demon, a creature composed of swirling black smoke and shadows, positioned centrally in the frame. The demon possesses large curved horns and a formless face; in place of facial features, a floating mystical emblem featuring a piercing red eye hovers directly in front of its head. It wears ornate white armor on both arms, intricately detailed with colorful stained-glass patterns, and a white loincloth paired with a red apron around its waist that bears a matching emblem. The demon grips a massive greatsword with a distinctively wavy, undulating blade in its right hand, while its left hand remains poised in a menacing claw. Massive wings made of dense black mist extend from its back, billowing outwards. The background is a void of shifting grey fog and darkness. The visual style is a high-quality anime illustration with high contrast, where the brilliant white armor and glowing red eye sharply pop against the deep blacks of the demon's body, creating an ominous and ethereal atmosphere.