Invincible: My Physical Body is Unmatched in Another World

[Invincible Protagonist] + [Fantasy Adventure] + [Only the MC Can't Use Magic] + [Overpowering Force Crushes All] A loser shut-in gets transported to another world. This world treats him incredibly well - not only curing his nearsightedness but also enhancing his entire body beyond limits. With his physical abilities maxed out, he becomes utterly invincible in this world. Monsters, spirits, gods, demons, or Buddhas - whoever opposes him gets one punch. No need for tricks, schemes or supernatural mysteries - piss him off, and he'll drop a nuclear-level fist. He begins exploring this world, embarking on adventures. Once timid and weak, he now fears nothing. He'll see every wonder this world has to offer and do everything he never dared to before. Injustice? He'll crush it without hesitation. Why is he so reckless? Because he's invincible.