Dr. Stone Wiki
Dr. Stone Wiki

Two Nations of the Stone World (石の世界の二つの国 Ishi no Sekai no Futatsu no Kuni) is the sixth episode of the Dr. Stone anime. 


The flashback to Senku's awakening continues. With his necessities met, he recognizes that he needs additional manpower to continue progressing in science. He finds Taiju's statue and attempts to revive him using the nitric acid from the Cave of Miracles nearby. He deduces that depetrification must require some additional factor. For him, it was that he maintained consciousness during his petrification. He begins experimentation to see if another method of depetrification exists. (This leads into the events of Episode 1.)

In the present, Senku is revived with the help of the Revival Fluid. He decides to split up from Taiju and Yuzuriha in order to build a "Kingdom of Science" to fight against Tsukasa. The other two will serve as spies within Tsukasa's empire.

Meanwhile, Kohaku confronts Tsukasa for attacking Senku and Yuzuriha. Tsukasa traps Kohaku under a tree and flees after determining that securing the Cave of Miracles is his top priority. Senku arrives, creating a system of pulleys to lift the tree, rescuing Kohaku.

Plot Details[]

Senku reunited with friends

Senku, Taiju, and Yuzuriha reunited.

Following a long day in the new Stone World, Senku has his basic necessities met, but he requires additional manpower to progress further. Senku finds and digs up Taiju's statue and tests nitric acid on him.

When the nitric acid is initially ineffective on Taiju, Senku deduces that depetrification must require some additional factors. He tries and tests everything that comes across his brain until he finally realizes that staying awake for those centuries allowed him to break out of the stone. Senku continues to experiment until, eventually, Taiju awakens.

Senku raises the flag

Senku raises the flag for the Kingdom of Science.

Back in the present day, Taiju calls for Senku to awaken in the same way Senku did for him that short while ago. Senku suddenly awakens and his friends embrace him. Unfortunately, their time together is short, and they decide that Taiju and Yuzuriha will spy on Tsukasa's new empire while Senku leaves to build a "Kingdom of Science."

A newcomer confronts Tsukasa in the mountains. He realizes that she is of a generation far after the humans that were petrified. She witnessed Tsukasa attack Senku and the others. Despite her considerable skill, Kohaku is overpowered and trapped beneath a tree by Tsukasa. His top priority is securing the revival fluid, so Tsukasa leaves her behind to get back to the cave before Taiju and Yuzuriha.

Kohaku rescued

Kohaku witnesses Senku's science.

Senku eventually happens upon Kohaku and asks her if he wants him to blow up the tree quickly or take his time. Senku promises to free her with time, so Kohaku agrees to wait beneath the tree. After several hours, Senku creates a system of pulleys that lifts the tree gently off the girl. Amazed, Kohaku admits she's taken a liking to Senku, the "sorcerer."






  • Mount Hakone


  • Pulley


  • Kohaku vs. Tsukasa

Anime to Manga Differences[]

  • A panel showing Senku has a shock in the backbone is omitted in the anime.
  • There is an additional scene showing Senku and Taiju calling each other's names before Senku wakes up.
  • The anime version shows Kohaku and other real characters instead of random primitive characters in Senku's imagination.



Site Navigation[]

[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