As far as I know, there was no explicit gender description in the original work, but in the detective novel "Naruto Gaiden: The Secret of Onmyoji", the truth that Azuwa no Yueyan was actually a woman was revealed. In the doujin novel "From Naruto Sengoku," the author gave Azuno Yuobai a clear gender, which was female. Therefore, one could choose which gender to accept according to their preferences. If you like the female version of Moonless Water, I recommend you to read the Doujinshi novel "The Creation Goddess of Ninja World". The female protagonist also transmigrated to the Naruto world and wanted to become a god. I hope you like my recommendation. Muah ~