1girl, black_hair, black_nails, black_panties, black_skirt, demon_girl, demon_tail, demon_wings, grey_background, kamikuse-chan_(muzin_chan), long_sleeves, looking_at_viewer, muzin_chan, original, panties, purple_eyes, school_uniform, short_hair, simple_background, skirt, tail, thigh_gap, two_side_up, underwear, wings