Professor Nyanya (Blue Archive), vibrant full color illustration, long flowing purple hair messy, horn accessory tilted, tsundere expression with deep red flushed cheeks, looking back over shoulder at viewer with embarrassed but inviting gaze, small floating heart ❤ beside face, detailed school uniform on upper body only, blouse tight across huge chest with buttons undone showing cleavage, lower body completely exposed, on all fours with ass raised in doggy style position, semen dripping from vagina down thighs, filled condom hanging from vaginal opening, thigh has "正" character tally mark drawn on skin, wetness visible, "it's not like I wanted this" attitude, denial expression contrasting with exposed state, delicate cel-shaded coloring, anime style, clean lines, explicit content, professional rendering, soft pink gradient background, 8k, masterpiece.