1girl black_hair black_sailor_collar black_scarf black_serafuku black_shirt black_skirt bridal_gauntlets closed_mouth eye_mask fake_horns hair_between_eyes henken highres holding holding_sheath horns long_sleeves neckerchief original pantyhose pink_background pleated_skirt red_neckerchief sailor_collar scarf school_uniform serafuku sheath sheathed shirt shoes simple_background skirt solo standing sword weapon