Satanichia, Raphiel, Gabriel, and Vignette from Gabriel Dropout HD Wallpaper

Four anime characters are depicted in a minimalist style against a light blue background. From left to right, they are Satanichia Kurumizawa McDowell with red hair, Gabriel Tenma White with blonde hair, Raphiel Shiraha Ainsworth with white hair, and Vignette Tsukinose April with dark purple hair. Each character's face is a solid color, lacking features.