4boys animal_ears black_hair blonde_hair blue_hair brown_eyes brown_hair collar demon_boy demon_horns dog_boy dog_ears dormouse_(yume-100) green_eyes horns las_(yume-100) looking_at_viewer looking_up lying male_focus mouse_boy mouse_ears multiple_boys on_back plums43 pointy_ears red_eyes riel_(yume-100) toto_(yume-100) yume_oukoku_to_nemureru_100-nin_no_ouji-sama