Hoshiguma from Arknights with Oni Mask HD Wallpaper

An anime illustration depicts Hoshiguma from Arknights, a character with long teal hair and pointed ears. She wears a dark outfit and carries a sword. A red Oni mask is prominently displayed on her belt. In the background, a ghostly white figure with sharp teeth and horns is visible, along with swirling smoke and abstract shapes.