@Fismanislucky Natsuki will definitely have a power-up after this, but it won’t be Mokuton per se. Simply because, even if she had Mokuton, she wouldn’t be on the same power scale as Hashirama or Mangekyo users. I believe Mokuton was only strong because Hashirama was Hashirama. Other Mokuton users, like Yamato, used it more like an average, normal kekkei genkai. But thank you for the idea, I think it’s really good. I might use this idea for an extra someday. Wouldn't that be fun?
Also, a little spoiler... if you look closely at the fic’s title, you might get a sense of where Natsuki’s story is heading.... :)