Professor Nyanya (Blue Archive), vibrant full color illustration, long flowing purple hair messy, horn accessory tilted, tsundere expression with deep red flushed cheeks, looking away from viewer with embarrassed pout, eyes slightly teary, arms crossed under massive breasts pushing them up, small floating heart ❤ beside face revealing true feelings, detailed school uniform on upper body only, blouse tight across huge chest with buttons undone showing cleavage, lower body completely exposed, cross-section anatomical view showing complete internal reproductive system, detailed vaginal canal, cervix, uterus with endometrial lining, fallopian tubes, and ovaries visible in cutaway view, uterus detailed with inner texture, legs spread wide open, internal wetness visible throughout canal and pooling in uterus, "it's not like I did this for you" attitude, denial expression contrasting with exposed internal anatomy, delicate cel-shaded coloring, anime style, clean anatomical lines, explicit internal detail of entire reproductive system, professional medical illustration quality, soft pink gradient background, 8k, masterpiece.