Rule 34 Dev - 1boy animal_ear_fluff animal_ears blush cat_boy cat_ears cat_tail closed_mouth dated drawstring from_side fur greyscale highres hood hood_down hoodie kemonomimi_mode kuga_yuuma long_sleeves looking_at_viewer male_focus monochrome red_eyes sacog simple_background smile solo spot_color tail upper_body whiskers world_trigger|12392355807