Stone Formula Arc

* Anime
* Manga

The **Stone Formula Arc** is the first arc of *Dr. Stone* and the first arc of the Prologue Saga.

Bathed in a mysterious petrifying light, Senku and Taiju wake up alone, thousands of years in the future. With nothing but their wits and strength, the pair survive, hoping to eventually save all 7 billion people.

## Summary

On the day Taiju decides to confess to his crush Yuzuriha, a mysterious light appears on the horizon and interrupts them. Taiju tries to protect her, but they both turn to stone. The light is felt around the world, and eventually all of humanity has been turned to stone. Time passes as Taiju wonders what happened. He remembers the petrified birds he and Senku had found the day before, and thinks that may have been what happened to them too.

With no way of knowing how much time has passed, Taiju is determined to live until he can confess to Yuzuriha properly. Humanity's constructions deteriorate as thousands of years pass, when one morning, Taiju breaks free.

Following the river, Taiju eventually comes upon the Camphor Tree that Yuzuriha was holding on to, and finds her held tight to the trunk. Next to her head, Senku had written a letter for Taiju, and he soon finds him as well. Once reunited, Senku tells Taiju of his plan to bring back humanity, and the pair team up.

The first task is to collect food, which Taiju does well despite not knowing what's edible. He eventually comes upon a cave which Senku is collecting nitric acid from. He theorizes that the reason they both woke up was because of the nitric acid and that they stayed awake. Senku wants alcohol to test with as well, to create nital. Taiju tells him of the grapes he found, and they make wine and distill it into something stronger. After countless tests, Senku manages to create the Revival Fluid.

Next, they want to revive Yuzuriha, but before they can find her, a pack of lions discover them and gives chase. Since neither of them are fighters, Taiju suggests reviving Tsukasa, an MMA fighter. He easily defeats the lions, then asks for a knife so as to not waste the kill. They walk back to Senku's hut and greet each other properly. Afterwards, they go to the beach to collect sea shells for calcium carbonate. That evening, Tsukasa and Senku discuss their world views and goals, and Senku realizes that Tsukasa wants to create a pure world rather than simply reviving everyone.

## Story Impact

* Humanity is turned to stone by a mysterious light.
* The stone formula is discovered: a chemical that can undo the effects of petrification.
* Senku proclaims he'll recreate civilization from scratch.
* Senku, Taiju, and Tsukasa are revived.

## Characters Introduced

* Senku Ishigami
* Taiju Oki
* Yuzuriha Ogawa
* Tsukasa Shishio

## Inventions in the Order of Acquisition

*For a complete list of inventions in more detail, see Inventions and Discoveries.*

* Nitric Acid
* Wine
* Revival Fluid
* Calcium Carbonate

## References

1. ↑ Dr. Stone Manga: Chapter 1, Pages 1-27
2. ↑ Dr. Stone Manga: Chapter 1, Pages 28-34
3. ↑ Dr. Stone Manga: Chapter 1, Pages 35-52
4. ↑ Dr. Stone Manga: Chapter 2
5. ↑ Dr. Stone Manga: Chapter 3
6. ↑ Dr. Stone Manga: Chapter 4