A detailed three-quarter portrait in a dark, mature anime style with thick, bold black outlines and a stark white background. A stunning and athletic oni with horns on her head woman in her late 20s, with long, straight, and sharply styled black hair. She wears a rugged, battle-worn warrior attire, with subtle signs of wear and tear. Her expression is stern and experienced, with a hint of battle-hardened grit, and she strikes a strong, assertive pose, fully facing the viewer. The vibe is a gritty medieval fantasy with a slightly rough, textured aesthetic. The character is fully visible within the frame, centered, with ample space around the edges.
