Rule 34 Dev - 1girl black_hair blue_one-piece_swimsuit blue_sky blush braid braided_bangs cloud commentary_request flat_chest grey_eyes hiyori_mizuki looking_at_viewer marker_(medium) one-piece_swimsuit open_mouth school_swimsuit shikishi shiraishi_yuzuki short_hair sky smile solo sora_yori_mo_tooi_basho swimsuit traditional_media|23860710549