mephis pheles (mahou shoujo ikusei keikaku) drawn by apuferu

1girl apuferu black_hair black_nails blunt_bangs blunt_ends bodystocking bodysuit demon_girl demon_tail demon_wings fingernails highres jewelry long_hair long_sleeves looking_at_viewer magical_girl mahou_shoujo_ikusei_keikaku mask mask_on_head mephis_pheles nail_polish open_mouth piercing ring see-through_clothes snake_tattoo solo squinting tail tattoo tongue tongue_out tongue_piercing wings