Five anime girls in dark uniforms with bat wings HD Wallpaper

Five anime girls stand in dark, uniform-like outfits against a dark background. The girl on the far left has white hair in pigtails, the next has short brown hair, the middle girl wears a black cap, the fourth has long blonde hair, and the girl on the far right has short grey hair. Their outfits appear to have bat wing-like elements at the bottom.