2D anime illustration, flat cel-shaded style, thick clean black lineart, vivid saturated flat colors, no realistic painting, single young East Asian anime girl, extremely large heavy breasts, huge bust, soft round oversized boobs, visible nipples, full body kneeling pose, wet dark hair strands clinging to face, water droplets on skin, deeply flushed cheeks, mouth open panting, glossy pleading eyes looking up at viewer, exaggerated anime body proportions, simple dark wall background with a window, high quality anime key visual, 9:16 vertical composition