line art,line style,black background,(monochrome),greyscale,flat color,
1girl,solo,surtr_\(arknights\),
horns,purple eyes,glowing eyes,black hair,long hair,bangs,hair between eyes,demon horns,
shirt,black shirt,choker,black choker,official alternate costume,necklace,off shoulder,short sleeves,jacket,cross necklace,jewelry,black jacket,
looking at viewer,upper body,expressionless,close-up,pov,from below,
masterpiece,bestquality,onnk,
