Rule 34 Dev - 3girls black_hair black_socks blue_archive clothing_cutout demon_horns demon_tail full_body greyscale horns ichika_(blue_archive) kasumi_(blue_archive) mo_(kireinamo) monochrome multiple_girls navel_cutout project_arms school_uniform serafuku shorts socks standing sukeban_(smg)_(blue_archive) tail twitter|24611586597