Professor Nyanya (Blue Archive), vibrant full color illustration, long flowing purple hair slightly messy, horn accessory tilted, tsundere expression, looking away from viewer with flushed deep red cheeks, pouting stubbornly, arms crossed under massive breasts pushing them up, detailed school uniform perfectly fitted, blouse tight across huge chest with top buttons undone showing cleavage, skirt sitting low on wide hips, one leg slightly forward, glancing back at viewer from the corner of her eyes with embarrassed but inviting gaze, small floating heart ❤ visible beside her face, “it’s not like I did this for you” attitude, denial body language but heart giving her away, delicate cel-shaded coloring, anime style, clean lines, classic tsundere pose with love heart accent, professional rendering, high-quality illustration, soft pink gradient background, 8k, masterpiece.