Professor Nyanya (Blue Archive), monochrome line art, long flowing hair with soft waves, distinctive horn-like head accessory, gentle smiling expression with slight blush, detailed school uniform with bow at collar, pleated skirt slightly lifted revealing upper thighs, sitting on desk with legs slightly apart, one hand resting on inner thigh, fingers lightly touching skin, delicate shading on exposed skin, anime style, clean elegant lines, suggestive but maintaining original art style, high-quality illustration, character design, soft lighting, intricate hair strands, expressive half-lidded eyes, studio-quality rendering, 8k.