Rule 34 Dev - 1girl arm_up armpits bat_hair_ornament black_bustier black_choker blonde_hair blush breasts choker cleavage hair_ornament hairpin heart hololive large_breasts looking_at_viewer official_alternate_costume open_mouth pony_r short_hair smile solo virtual_youtuber white_background yellow_eyes yozora_mel yozora_mel_(2nd_costume)|20403701019