Awesome animated, live desktop wallpaper: “Nightmare Arknights Mobile Game” at high quality and only for free.

An Operator suffering from Multiple Personality Disorder, whose aggressive “Nightmare” personality often hides behind the meek-mannered “Gloria.” “Nightmare” is the source of her codename, as well as the primary user of her Arts, which combine DPS, Healing, and Slow utility into one eccentric package.