So, I binged this. I actually really like it. It's quite a change from what I normally read. The characters aren't unreasonably busty and the clothes don't magically tear everywhere except the most important places, and it's completely female centered.. Frankly, it's done with a lot of taste and consideration for the sport and those who take it seriously. Of course, there's drama thrown in, but the characters are all engaging, even the secondary ones. They all feel like real people with their own goals and personalities. Watching them all put their hearts into it for various reasons is fun, even if I'm not much into MMA.
My only complaint is that the ending seems a little incomplete. Natsuo has a resolution of sorts, bu Mawatari had no development at all through the whole manga. It's almost like she should have been the main character, where we would slowly be given her tragic back story and reasons for the way she is and why she fought. In that case Natsuo would've been the slightly insane and disturbing, but skilled, antagonist that Yuzuko had to defeat before the final boss (the big tournament). It's an interesting thought.
Anyway, I absolutely love Natsuo's character, and would welcome seeing more. That evil smirk she always wears and the complexes she has.. She's doesn't have a "good" personality, obviously, but with her realization at the end, I'd love to see where she goes from there, as she continues to do MMA. And her best friend, Kei, was adorable, and provided a wonderful counterpoint and had a somewhat humanizing effect on Natsuo..
All the other girls at the girl were interesting, and I liked seeing all their quirks and differences. This actually got me excited for more. Would love to see the big tournament itself, especially with Natsuo sneakily in as a reserve. Anyway, it was a great ride!
Oh and I know it wasn't even really a thing in the story, but chapter 12 when Natsuo calls the Round Girls sexy, and then later calls Honma Mitsuki pretty, well, kinda makes you hope for some yuri at some point. Though obviously for Natsuo it's more about the fighting and the masochism than romance, so I could see her being bi, okay no matter the gender, but anyway, that's just speculation..