2020, 3girls, ^_^, ahoge, animal_ear_fluff, animal_ears, black_hair, blanket, blush, breasts, buttons, cleavage, closed_eyes, closed_mouth, collarbone, drooling, fox_ears, fox_girl, green_hair, green_hairband, grey_hair, groin, hair_intakes, hairband, long_hair, long_sleeves, lying, medium_breasts, microa, multiple_girls, navel, on_back, open_mouth, orange_eyes, panties, partially_unbuttoned, pink_shirt, purple_panties, saliva, shirt, siblings, sisters, sleeping, sleeves_past_wrists, smile, teeth, touhoku_itako, touhoku_kiritan, touhoku_zunko, underwear, upper_teeth_only, vocaloid, voiceroid