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Not One-Way (NOT (ノット) ONE (ワン) WAY (ウェイ) Notto Wan Uei) is the two hundred and tenth chapter of the Dr. Stone manga.


The chapter begins with Chrome and Suika carrying bauxite and depressed over the implications of the future moon mission. In another area, Senku explains the process for turning bauxite into aluminum and then duralumin for the rocket. The process involves a lot of electrical energy, and without many sources of power in the Stone World they plan to return to Japan and make hydroelectric plants with the abundance of rivers. The crew are excited to return home after such a long time.

Ukyo and Senku set up a soundproof safe for the petrification device, but Ryusui realizes that the effort Senku is putting in to hiding the device is to hide a greater secret: immortality. Senku confirms his suspicions while Ukyo is surprised by this news.

On a shack similar to Chrome's storage shed back in Ishigami Village, Chrome thinks out loud to Suika about who will be chosen to go to the moon. He feels dejected by the fact that, as an amateur scientist against experts, Chrome can't object to Senku and Xeno's plan. Angry at their choice, he tells Suika that they're going to build a return rocket and keep it secret from the others. Together, they decide they'll need to improve their math skills in order to do what they need to and ask Sai for help. Seeing their determination despite how hard it'll be, Sai agrees to tutor them.

Characters in Order of Appearance[]

Chapter Notes[]

  • As a lot of electricity is needed for turning bauxite into duralumin, they plan to do the final rocket building in Japan where they have access to hydroelectric power.
    • It will be the first time for some of the Perseus crew to reach home in over nine years chronologically but from their point of view it will be months.
  • Ryusui figures out that the Petrification weapon enables immortality.
  • Chrome wants to craft a return rocket for the trip going to the moon.
    • Suika agrees to help with the plan.
    • Sai agrees to teach Chrome and Suika math.
      • Sai worked as a university math teacher before the petrification.


  • The capsule making a liftoff from the lunar surface illustrated at the end of the chapter, marked ''Senku 11'', as well as the rocket shown prior, are a rather obvious reference to the Apollo 11 mission which landed humans on the moon for the first time in history, in the year 1969.
  • Sai apprears to have written the stone world's first math book.

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Volume 27 Terraforming4D Science: 14D Science: 24D Science: 3
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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