Rule 34 Dev - 1girl 2021 2boys animal_ears blue_sky brown_eyes chinese_zodiac cow cow_boy cow_ears cow_horns father_and_son from_side horns leaf_in_mouth male_focus mini_person minigirl mouse_(animal) mouse_girl mukai_natsumi multiple_boys on_head original outdoors sky tunic white_hair white_tunic year_of_the_ox|25571662506