Dr. Stone Wiki
Dr. Stone Wiki

Risk or Heart (RISK (リスク) or (オア) HEART (ハート) Risuku oa Hāto) is the one hundredth sixty-ninth chapter of the Dr. Stone manga.


The chapter begins with Senku telling Brody over the phone to make a ton of Revival Fluid and revive a million people, while boating away from the American Colony base. The others onboard realize that they'll be saying goodbye to their friends who are still captured.

Minami tries negotiating with Brody as she is one of the few who know English, but Brody immediately shuts her down. Nikki steps in and starts making demands in a much more forceful way, getting Brody to concede.

Corn city negotiations

Everyone is untied, but Stanley is still in pursuit of Senku on boat, and no one can stop Stanley. Everyone on deck hides from Stanley's line of sight, but they've tied the petrification device to the prow of the ship. The newly-freed members of the Kingdom of Science notice it, and Yuzuriha comes up with a plan.

Soon, all of them are yelling that the device is dangerous, which causes the other Americans to go running. Stanley instead shoots the device off the prow, juggling it in midair with his bullets, before letting it drop into the water. Senku's boat speeds past while this is happening, and Stanley realizes it was a bluff.

Ignoring the risks, both groups have a tearful farewell as the boat leaves to open waters, towards South America.

Characters in Order of Appearance[]

Chapter Notes[]

  • The Perseus crew are able to escape Stanley.
    • Dr. Brody agrees to deal with the crew.
  • Stanley learns Senku is alive.
    • Stanley shoots the petrification device after Senku only to find it does not work. The device is sunk into the water as a result.
    • Senku's group head for South America.
    • Stanley decides to pursue Senku.

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Volume 1 1234567Extras
Volume 2 89101112131416Extras
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Volume 4 262728293031323334Extras
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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