Professor Nyanya (Blue Archive), vibrant full color illustration, long flowing purple hair extremely messy tangled sweaty strands spread on bed, horn accessory crooked, tsundere expression deep crimson flushed face hidden in pillow, only side profile visible showing extreme embarrassment, tears streaming down cheeks, small floating heart ❤ and sweat drops beside face, detailed school uniform completely disheveled, white blouse hanging off shoulders barely covering, bra pushed up above massive breasts, huge natural breasts pressing against bed mattress squished from weight, rock hard pink nipples visible, skirt completely pushed up bunched at waist, completely naked lower body with no underwear, on all fours on bed with round ass lifted high directly facing viewer, rear view showing spread plump buttocks, completely exposed wet pink vagina and tight anus detailed, legs spread wide open, thick white semen visibly dripping slowly from used vagina forming puddle on sheets below, multiple used condoms on bed filled with cum, one used condom hanging filled with cum dangling between thighs, "正" tally mark clearly drawn on inner thigh indicating how many times, tangled completely messy sheets with wet stains, soft warm intimate golden lighting, bedroom atmosphere with stuffed animals watching, "it's not like I wanted this" embarrassed expression hidden in pillow while presenting herself, anime style masterpiece, highly detailed intricate linework, cel shaded with soft shadows, vibrant colors, professional rendering, 8k ultra high definition, award winning illustration quality, best quality.