Rule 34 Dev - 1girl black_skirt blue_gemstone cardigan dress_shirt gem hair_ornament happy_birthday nijisanji open_mouth pink_cardigan pink_nails ryoku_illus shirt skirt smile solo striped_clothes striped_skirt suzuhara_lulu suzuhara_lulu_(1st_costume) vertical-striped_clothes vertical-striped_skirt virtual_youtuber x_hair_ornament|20514044070