I liked this. It was about a boxer, but not about boxing. That was nice, because I was bracing myself for blow by blow ringside reports, but thankfully they didn't appear.
Instead, a thoughtful tale about gender, sexuality, equality and acceptance.
The 'Girls can't box' side of it reminded me of the British boxer
Jane Couch who had to fight abroad because the boxing authorities in the UK wouldn't let her fight as a professional.
The gender and Gender Identity stuff was handled pretty well too. The author wasn't writing about Gender Disphoria, but it wasn't magic out of existence either. The main character clearly always wanted to take the ring off, and I found the comment about being sick of standing up to pee pretty telling in that regard. Also, the myth of changing gender as a 'cure' for Homosexuality or Lesbianism was neatly kicked in the balls. Here were two women who wanted to be together
as two women. If one of them had to disguise herself as a man, that was only because of stupid rules about who can or can't be a boxer.
No problem with the girls deciding to find a way to bring back the male alter ego at the end either. Even when people are happy with their gender and sexuality, that doesn't mean they have no desire to explore other sides of their character. This story touches on a very wide spectrum of individuals when it plays with gender in the way that it does, and I think it does it fairly well. To do better would have meant making it a much bigger part of the tale.
I suspect I just made all that out to be a bigger part of the story than it really is, but that was what I saw from my perspective, anyway.