Not a popular anime, but the busty martial arts nun is the most memorable part.
Prompt
Generate a new 2:3 close-up portrait with dark background, inked line art, realistic anime (not shiny), slight watercolors, chiaroscuro. Green eyes, very slight smile. She wears a nun's headdress only and her necklace. Three-quarter view, looking ahead of herself, not at viewer. She is busty, but include only enough cleavage at bottom of image to show the necklace at top of cleavage.
Image input: Crop of Danbooru post #9847443 and post #5591059
Not a popular anime, but the busty martial arts nun is the most memorable part.