1girl black_footwear black_necktie black_pants black_vest boots breasts butterfly_sitting coat commentary_request dated demon_girl demon_horns demon_tail goggles helltaker horns labcoat looking_at_viewer loremaster_(helltaker) mechanical_arms necktie open_clothes open_coat pants ponytail prosthesis red-tinted_eyewear red_goggles red_shirt shirt signature simple_background sitting smile solo tail tinted_eyewear translation_request tsukudani_(coke-buta) vest white_coat white_hair white_horns