Rule 34 Dev - 1boy beard black_hair black_headwear black_jacket black_pants dated facial_hair glint grin gun hand_on_headwear highres holding holding_gun holding_weapon jacket jigen_daisuke long_sleeves lupin_iii male_focus monochrome necktie pants simple_background smile solo teko_kijibato traditional_media weapon white_background|17196232131