Rule 34 Dev - 1boy blonde_hair closed_mouth collared_shirt cup forked_eyebrows highres holding holding_cup indoors kimetsu_gakuen kimetsu_no_yaiba leaning_forward long_hair looking_at_viewer male_focus multicolored_hair necktie red_eyes red_hair red_necktie remsor076 rengoku_kyoujurou shirt sitting sleeves_rolled_up smile solo two-tone_hair upper_body white_shirt wing_collar|14258306439