Masterpiece, best quality, ultra-detailed, 1girl, cinematic lighting, dynamic angle, anime style.
[Character & Pose] hoshimi miyabi, A cool anime girl with long, flowing dark black hair, straight bangs, and sharp red eyes. She has distinct dark grey fox ears protruding from her head. She is positioned in a side-profile view, upper body close-up shot, looking to the left with a calm, sharp expression. She is dynamically posing, ready to draw her sword. Her right hand is gripping the hilt of a mechanical scabbard, and her left hand is wrapped in a black arm-guard sleeve. She wears a stylized traditional-modern hybrid uniform: a white top, a dark teal capelet jacket draped over her shoulders, and a dark pleated skirt. Crimson cords are wrapped around her upper arm.
[VFX & Sword] She holds a futuristic, highly-detailed katana with a mechanized scabbard. Intense, glowing cyan electricity and light streaks emanate from the blade and slash across the screen in dynamic diagonal lines. Ethereal, flowing cyan aura and wisps of spirit energy surround her body.
[Mascot] A small, round, black floating mascot with a large, singular glowing red eye and small horns floats just behind her shoulder, surrounded by ghostly vapor.
[Composition & Background] Vertically long composition, dynamic framing. The background features a striking mix of traditional Japanese motifs and geometric patterns. A prominent, large circular graphic frame with a jagged coral-pink pattern encircles the scene. Deep crimson circular accents, abstract dark grey swirling smoke or clouds, and layered geometric lines create a complex, stylized backdrop. The overall color palette is a stark contrast between cool cyan-blue, deep teal, and sharp accents of crimson-red and white. Scattered red rectangular particle effects float in the foreground and background, adding movement. Splashes of light and energetic, sketchy line art enhance the illustrative, high-contrast action feel.