More scenes happen later in chapter 46 as a rival boxing gym challenge Kousaku boxing gym

One last picture of Hibari being smug plus one page that didn't make it in the manga

then we have one more boxing situations in chapter 45, Kumiko students have to win a boxing match in order to keep the school opened, but their students kinda sucks at it, so she's step on the ring instead

From Inkya Gyaru Demo Ikigaritai!

this scene (and "Unused character") is anime only but there's a bit more boxing in the manga too, in chapter 106 where they just fool around punching each other

that "that's what you get for not taking boxing seriously" line cracks me up, anyway that's it for Kill me Baby

so it turns out the boxing scene and "Unused Character" ARE in the manga and i'm dumb, this is what i get for not doing my proper research before posting

Same Scene but manga version from Chapter 132

the somewhat recently released chapter of Undead Unluck also has Fuuko doing the Dempsey Roll

Please Don't Bully Me Nagatoro, a romcom about a girl with a bullish attitude, does a bit of shadow boxing after she got lent a volume of Ippo, the author also drew a comical version of the Dempsey Roll

This manga caused a huge shockwave in the community when it was announced back in 2017, finally! a proper female boxing manga! however things didn't go as expected, the author drew 7 chapters and then the manga went on hiatus because of the author health problem

after a few years, the author was able to resume work and drew up to chapter 11, unfortunately by this point, the momentum was lost and the publisher decided to drop the manga