Majesty of the White-Haired Oni Warrior

Against a pure white background, a white-haired oni girl in a white dress gazes forward serenely with black horns raised high. A pair of black horns curve sharply upward from her head, revealing her oni lineage, while her amber-red eyes hold a complex light where human emotion and demonic wildness coexist. Her white hair scatters roughly around her horns, and black swirling oni tattoos are vividly etched on one arm and leg, hinting at sealed power within. A pure white halter-neck dress falls to above her knees, with golden diamond pattern decorations at the waist adding ceremonial formality. Behind her back, black mechanical arms and cables wrap in a circular formation, with orange sensors glowing on both sides, evoking restraint devices that suppress the oni's power. A greatsword hilt visible beside her hints at her essence as a warrior. A fantasy illustration capturing the serene yet threatening presence of the white-haired oni warrior through the extreme contrast of pure white and matte black.