>>3373377Some quotes I found:
" In official canon, Akihito says the gender is ambiguous and uses genderless pronouns for Nanachi in the manga. Jake Jung (official translator) said that he personally views them as a male and said that the mangaka hints at it slightly too. Hentai begs to differ."
And
"But yeah, overall, it's definitely unclear as to what gender Nanachi is. However, an interview of the 3 Japanese actresses did tell us a few things. I'm not entirely sure how to upload images, so bear with me. If you've bought the box set by Sentai Filmworks, you'll find an interview. The actress for Nanachi (Shiori Izawa) said that Nanachi does not have a gender after the transformation into a Narehate. This however, doesn't make too much sense to me personally, because she retained other organs and systems, such as her digestive system and respiratory system, so why wouldn't she retain her reproductive system? Also, in biology, if you're not male you're defaulted to a female, so you are usually one or the other. Oh well, we can't really argue for this point since the author himself made it this way. In addition, Izawa said she actually knows the gender Nanachi was before her transformation! She got exclusive information from Akihito himself. However, after the interviewer asked what it was, Izawa said it wasn't her place to reveal that information. Furthermore, she said that there is a specific reason Akihito kept Nanachi's gender ambiguous. Perhaps we will see soon why he did so, and along with that maybe we'll find out Nanachi's gender before the transformation. Before then, I'll see her as a female, since that's what I've always saw her as."
And according to this straw poll:
https://strawpoll.com/zyswy341As well as the poll here:
https://myanimelist.net/forum/?topicid=1669362Looks like folks overwhelmingly have decided that Nanachi is female. Or at least was female. *le sigh*