Dr. Stone Wiki
Dr. Stone Wiki

Life Stone (LIFE (ライフ) STONE (ストーン) Raifu Sutōn) is the two hundred and twenty-eighth chapter of the Dr. Stone manga.


Stunned by the view in front of them, the astronauts are speechless as Chrome calls out to them from ground control, asking what they see. The writhing black mass Kohaku had seen on the cameras previously is revealed to be a vast amount of petrification devices, floating in arcs.

Kohaku spots their device, the one in the capsule, and makes a move to retrieve it. Stanley stops her. Senku then begins communicating with it, confirming that the device itself had been the one to talk to them earlier. The devices are revealed to be machine life-forms of a sort, forming what the humans recognize as Why-man.

The device once more asks "do you wanna die?". The astronauts freeze, and on Earth, Gen begins assessing their negotiation angle. He suggests that the humans offer them a gift, and Senku figures out that they probably want maintenance done on them: he offers them new diamond batteries. In return, Senku wants them to "quit firing off those damn petri-beams".

It responds by asking "why?", and they hear the tell-tale click of the device priming. Stanley reaches for the gun, but a different device responds and asks that everyone be still. Stanley realizes that the devices do not act in unison.

Senku points out that the Petrification beam serves the purpose of offering something all beings want (everlasting life) in return for maintenance. Xeno exclaims the devices are in fact mechanical parasites that drive intelligent life to better itself in order to help them. The device agrees with what the humans have said, and begins explaining what happened from the beginning.

Characters in Order of Appearance[]

Chapter Notes[]

  • The dark shifting mass on the moon is revealed to be a massive collection of petrification devices.
  • Why-man is revealed to be an intelligence within the devices themselves.
  • Senku offers them a gift of new batteries in exchange for not petrifying all of humanity constantly.
  • The device in the capsule plans to explain what happened on the day of the first worldwide petrification beam.
  • The fact the Medusa Devices are a sentient race combines all three of Senku's Why-man ideas
    • They are a parasitic race; fitting the virus theory.
    • They are an enemy civilisation that made a failed attempt at using the Medusa
    • They are aliens.

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Chapters and Volumes
Volume 1 1234567Extras
Volume 2 89101112131416Extras
Volume 3 17181519202122232425Extras
Volume 4 262728293031323334Extras
Volume 5 353637383940414243Extras
Volume 6 444546474849505152Extras
Volume 7 535455565758596061Extras
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Volume 9 717273747576777879Extras
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Volume 11 899091929394959697Extras
Volume 12 9899100101102103104105106Extras
Volume 13 107108109110111112113114115Extras
Volume 14 116117118119120121122123124Extras
Volume 15 125126127128129130131132133Extras
Volume 16 134135136137138139140141142Extras
Volume 17 143144145146147148149150151Extras
Volume 18 152153154155156157158159160Extras
Volume 19 161162163164165166167168169Extras
Volume 20 170171172173174175176177178Extras
Volume 21 179180181182183184185186187Extras
Volume 22 188189190191192193194195196Extras
Volume 23 197198199200201202203204205Extras
Volume 24 206207208209210211212213214Extras
Volume 25 215216217218219220221222223Extras
Volume 26 224225226227228229230231232Extras
Volume 27 Terraforming4D Science: 14D Science: 24D Science: 3
[v  e]
Story Arcs
Prologue Saga
Stone Formula Arc
Chapters 1234
Episodes 12
Vs. Tsukasa Arc
Chapters 56789101112
Episodes 345
Ishigami Village Saga
Kingdom of Science Arc
Chapters 131415161718192021222324252627282930313233
Episodes 5678910111213
Village Games Arc
Chapters 34353637383940
Episodes 131415
Village Origins Arc
Chapters 4142434445
Episodes 1617
Stone Wars Saga
Vs. Hyoga Arc
Chapters 4647484950
Episodes 1819
Communications Arc
Chapters 5152535455565758596061626364656667686970717273747576777879808182
Episodes 20212223242526272829303132333435
Source of the Petrification Saga
Age of Exploration Arc
Chapters 8384858687888990919293949596979899 100
Episodes 35Ryusui3637383940
Treasure Island Arc
Chapters 101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138
Episodes 4142434445464748495051525354
The Truth of the Petrification Saga
New America City Arc
Chapters 139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169
Episodes 555657
South America Arc
Chapters 170171172173174175176177178179180181182183184185186187188189190191192193
New Stone World Arc
Chapters 194195196197198199200
Globetrotting Arc
Chapters 201202203204205206207208209210211212
Stone to Space Saga
Moon Mission Arc
Chapters 213214215216217218219220221222223224225226227228229230231232