Rule 34 Dev - 2boys arknights armband bishounen black_hair black_nails blue_eyes coat faust_(arknights) fingerless_gloves gloves green_eyes highres holding_person kimven_(wenzisama) male_focus mephisto_(arknights) multiple_boys nail_polish pointy_ears red_armband simple_background upper_body white_background white_coat white_hair|15629735160