Ace in the Hole on the Ship of Science (切り札は科学の船に Kirifuda wa Kagaku no Fune ni) is the 107 chapter of Dr. Stone manga.


Needing Kohaku to infiltrate the harem selection, Senku and the recon team express doubt that she can successfully adapt to the role of a maiden. To help her, Senku needs the materials still aboard the Perseus.

However, the Petrification Kingdom, led by Minister Ibara, has already seized the ship. Kohaku leaps towards the ship, enraged after seeing Ibara break the statues of her comrades, but is stopped by Kirisame. After a brief scuffle, Kohaku yells out "lab", a word not known to the natives, as Soyuz guesses that she is hoping someone is still alive on the ship to hear it. Gen and Senku assist in her bluff. Kohaku even kisses Senku to prove it.

Aboard the ship, it is revealed there is a survivor, Ginro who hides among the cargo, afraid to respond to Kohaku's plea.

Characters in Order of Appearance

Chapter Notes

  • It is revealed Ginro survived.
  • More statues are shown.
  • Kohaku kisses Senku.

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Arcs & Sagas
Prologue Saga
Stone Formula Arc
Chapters 1234
Episodes 12
Vs. Tsukasa Arc
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Ishigami Village Saga
Kingdom of Science Arc
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Source of the Petrification Saga
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The Truth of the Petrification Saga
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