I'm actually looking for a MC that only uses his punches and kicks in a world with swords, spears, axes, etc. I've just gotten through. Martial World and I kinda want to see where a fist only protagonist can do
Stellar Transformations. I can't actually remember if he ever uses weapons, but his focus is on body refining. At the very least he doesn't for a long time.
Mondaiji tachi ga Isekai Kara to aru majutsu no index Magic? Muscle Is Much More Important Than Such A Thing!