Rule 34 Dev - 1girls aged_up alternate_hairstyle arupakaeater backpack bird birds black_and_white black_hair blush_stickers boots busty expressionless huge_breasts instrument kaai_yuki looking_at_viewer monochrome musical_instrument neoki_yashinoki_(vocaloid) randoseru recorder_(musical_instrument) skirt solo solo_female vocaloid|9395790624