Humanity's Greatest Weapon (人類最強の武器 Jinrui Saikyō no Buki) is the fiftieth chapter of Dr. Stone manga.


Tsukasa depetrifies Hyoga. It also shows others that are part of Tsukasa Empire. Hyoga, a girl, a runner, a bald man and an archer.

It shows Tsukasa Empire Fortress with bridges, campfires and tree houses.

Another girl tells about how they have to work everyday that they were practically slaves. Tsukasa asks Hyoga about rich fat old men.

Hyoga said that Gen Asagiri is utter falsehood and the Ishigami Village has great scientific power and Senku Ishigami is still alive. Senku has no ingredients for the stone formula.

They plan a preemptive attack as Gen tells that Tsukasa Empire has more soldiers the more time passes by. Senku plants to use the most powerful weapon in 2 million years of humanity and its not Nuclear Weapons but Communication Technology.

Characters in Order of Appearance


  • The flashback of Tsukasa reviving Hyoga is shown.
  • Senku plans to create cellphones.

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Arcs & Sagas
Prologue Saga
Stone Formula Arc
Chapters 1234
Episodes 12
Vs. Tsukasa Arc
Chapters 56789101112
Episodes 345
Ishigami Village Saga
Kingdom of Science Arc
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Village Games Arc
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Village Origins Arc
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Stone Wars Saga
Vs. Hyoga Arc
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Communications Arc
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Source of the Petrification Saga
Age of Exploration Arc
Chapters 8384858687888990919293949596979899 100
Treasure Island Arc
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The Truth of the Petrification Saga
New America City Arc
Chapters 139140141142143144145146147148149150151152153154155156

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