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"Woof woof!"

— Chalk, on several occasions.

Chalk (チョーク Chōku) is a dog from Ishigami Village that is owned by Suika.


Chalk is a small dog with perfectly white fur and no markings. His ears flop over a little and his nose is fully black. His fur is quite short, the only exception being his tail which is slightly bushy. Chalk wears the village rope around his neck as a collar, marking him as one of the Ishigami villagers.

When Chalk gets older, he gains darker markings across his back, upper head and on the outside of his legs similar to a shiba inu. His ears have also perked up rather than stay floppy like they were as a puppy, and his tongue no longer lolls out of his mouth.


Chalk is quite a playful dog, frequently found playing with the foxtail millet. He rarely barks, but if he does it's to get someone's attention or out of excitement rather than from being scared or surprised.

Abilities and Skills[]

  • Sniffing: Chalk is trained to follow various scents, such as seeking out specific people or sniffing out truffles.[2]
  • Dramatic Reveals: On two occasions, Chalk has dramatically pulled the cover off something, revealing something that was meant to remain hidden.[3][4]


Chalk first appears playing with Suika outside Chrome's hut, trying to grab the foxtail. He then helps in the way a dog normally does as the humans turn the millet into flour.[5] Later, Chalk joins Suika, Senku and Chrome on their trip to the sunflower field to test out Suika's new glasses.[6] He is also shown celebrating next to Suika when the others to get back from Sulfurina's lake, carrying sulfuric acid.[7]

Village Games Arc[]

Chalk Helping Make Ramen

Chalk helps make ramen.

During the Grand Bout, Chalk is amongst the crowd that was slowly realizing that Ginro should never become Village Chief. It's unclear if he's simply mimicking everyone else or if he agrees with their sentiments.[8] Chalk then joins the walk with a newly-healthy Ruri out into one of the nearby meadows.[9]

After Hyoga's initial attack on the village, Chalk joins Suika in scouting out the hidden path Gen left for them to follow. Together, they deliver the tiny knife Senku made to him.[10]

Following Hyoga's second attack and the Kingdom of Science's subsequent retaliation by trying to sneak a cellphone into the Tsukasa Empire, Chalk tries to help track Homura by sniffing along the ground, however due to her gymnastics movements he is unable to find her scent.[11] He's also the one who found Mantle knocked out and in a bush, having been attacked while guarding Homura, then revealing that Homura had replaced herself with a dummy under a blanket.[12]

Age of Exploration Arc[]

Chalk Discovers Homura Missing

Chalk uncovers a secret.

During the boat competition between Magma, Senku and Yo, Chalk pulls the cover off of Yo's "completed" ship.[13] Suika and Chalk were also summoned by Francois as the resident forest experts to help them find ingredients for black truffle pork rillettes. Once they find boars, Francois demonstrates how to use them to hunt truffles. When they find one and it gets immediately eaten by Sagara, Chalk is trained on the scent to find the rest of them.[14]

New America City Arc[]

Chalk is also very excited to see Suika again after she returns from Treasure Island.[15]

South America Arc[]

Following the second Petrification Event, Chalk tries to interact with a petrified Mirai Shishio but sulks when she does not respond. Sagara finds Chalk in the village, before they run off somewhere in the forest. Years pass, with Chalk and Sagara having grown.[16]

Globetrotting Arc[]

Following the return of the Perseus, Chalk and Sagara are reunited with the now older Suika. The trio share a hug after being separated for more than a decade. It turns out that the pair created a Stone wall to prevent the statues from being destroyed by environmental hazards. Suika is pleased they protected everyone before noticing they have families now. She realizes how they have moved on and decides to do the same before they separate. However, this does not last long as both of them and their packs come back to dine on the cooking that François has made, with the kingdom of science noting on how the breakup did not last. Much later, it is revealed they were inspired to build the wall by the dam that the villagers created.[17]

Chapter Appearances[]

Chapter Appearances
Kingdom of Science Arc
13. Part 1: Stone World: The Beginning Absent
14. Those Who Have Faith Absent
15. Two Kingdoms of the Stone World Absent
16. Kohaku Absent
17. Nasty Looks Pictured
18. Sorcery Showdown Absent
19. Two Million Years of Being Absent
20. Stone Road Absent
21. Dawn of Iron Absent
22. Survival Gourmet Debut
23. The Smooth Talker Absent
24. Lightning Speed!!! Absent
25. By These Hands, the Light of Science Absent
26. A Shadow Alliance Absent
27. A Certain Scientists Wish Absent
28. Clear World Appears
29. Senku's Lab Pictured
30. Death Green Absent
31. Friends Have Each Other's Backs Absent
32. Brain & Heart Absent
33. Baaad Chemicals Appears
Village Games Arc
34. Sneaky Grand Bout Strategy Absent
35. The Masked Warrior Absent
36. Kinro and Ginro Absent
37. Science-User Chrome Absent
38. Master of Flame Absent
39. And the Winner is... Appears
40. Two Million Years in the Making Absent
Village Origins Arc
41. Doctor Stone Appears
42. Tale for the Ages Absent
43. Humanity's Final Six Absent
44. One Hundred Nights, One Thousand Skies Absent
45. Epilogue of Part 1 (End of Part 1) Part 2: Stone Wars Absent
Vs. Hyoga Arc
46. Stone Wars Absent
47. Science Vs. Power Absent
48. Blades of Science Flashback
49. To the Present Absent
50. Humanity's Greatest Weapon Absent
Communications Arc
51. Sweets for the Stone World Absent
52. Age of Energy Absent
53. Hard Knocks Crafting Club Absent
54. Flickering Blue Jewel Absent
55. Treasure Dungeon Push Start Absent
56. The Treasure Absent
57. Heat Heart Absent
58. Wave of Science Absent
59. Voices from Here to Infinity Absent
60. Angel's Song, Devil's Whisper Absent
61. Stone Wars Begin Absent
62. Double Chase Appears
63. Information Warfare Absent
64. Hotline Absent
65. Call From the Dead Absent
66. Liars and Truth Tellers Absent
67. Full Mobilization Absent
68. Flame of Revolution Absent
69. Steam Gorilla Absent
70. Paper Shield Absent
71. Prison Break Absent
72. Experience Points Absent
73. Top-Secret Mission Absent
74. Fateful 20 Seconds Absent
75. 20-Second Countdown Absent
76. Final Battle Absent
77. The Power of Science Absent
78. That Which Destroys or Saves Absent
79. For This Very Moment Appears
80. Humanity's Strongest Tag Team Absent
81. Fingertip Absent
82. Epilogue of Stone Wars (End of Part 2) Absent
Age of Exploration Arc
83. Dr. Stone Absent
84. People = Power Pictured
85. Ultimate Resource Absent
86. Money Absent
87. Senku's Department Store Absent
88. Wings of Humanity Absent
89. Adventures Absent
90. New World Map Absent
91. Need Bread? Start with Wheat Absent
92. Desire is Noble Absent
93. The First Shot Is Yours Absent
94. The Scent of Black Gold Appears
95. First Contact Appears
96. Eye of Science Absent
97. The Joy of Leadership Absent
98. Ryusui Absent
99. Kingdom of Science Photo Journal Absent
100. Origin of the 100 Tales Absent
New America City Arc
139. First Dream Absent
140. New World Plots Absent
141. First Team Pictured
142. World Power Absent
143. Ryusui vs. Senku Absent
144. Ryusui & Gen vs. Senku & Kohaku Absent
145. Bar Francois Absent
146. Bar Francois: Bitters Absent
147. Science Journey Absent
148. Pioneers of Earth Absent
149. Light Lure in Darkness Absent
150. Righteous Science User Absent
151. Dr. X Absent
152. Doctor Vs. Doctor Absent
153. Science Wars Absent
154. Spy vs. Spy Absent
155. Science Is Elegant Absent
156. Two Scientists Absent
157. Same Time, Same Place Absent
158. Who's the Scientist? Absent
159. Lock On Absent
160. Gunshots Echo Absent
161. Craft Wars Absent
162. Down the Earth-Stained Path Absent
163. Multifront Final Battle Absent
164. Re-Lock On Absent
165. Know the Rules, Make the Rules Absent
166. Ultimate Knight Absent
167. Different Strokes Absent
168. Corn City: Population One Million Absent
169. RISK or HEART Absent
South America Arc
170. Staring Up at the Same Moon Absent
171. Staring at the Same Light Absent
172. Marked with an "X" of Wisdom Absent
173. Earth Race Absent
174. The Specter of the Panama Canal Absent
175. Ultra Race Across South America Absent
176. Net-Breaking Battle Plan Absent
177. Medusa Mechanism Absent
178. Science Scales Mountains Absent
179. Bonds on the High-Wire Absent
180. Sickening Yet Beautiful Absent
181. New World Science Absent
182. Diamond Heart Absent
183. Stone Sanctuary Absent
184. Fort Medusa Absent
185. Lovely Cleavage Plane Absent
186. To Each Their Own Blade Absent
187. Cyber Guerilla Absent
188. What I Once Sought to Destroy Absent
189. Our Dr. Stone Absent
190. Science Transcends Life Absent
191. Divine Scream, Down to Earth Absent
192. Until We Meet Again Absent
193. Our Stone World Appears
New Stone World Arc
194. Homo Sapiens, All Alone Appears
195. Treasure Hunter, All Alone Absent
196. Scientist, All Alone Absent
197. A Stony Eden and Its Forbidden Fruit Absent
198. Whole New World Absent
199. Superalloys Absent
200. Future Engine Absent
Globetrotting Arc
201. Morse Talk Absent
202. Ryusui Corp. Absent
203. Missile Heart Absent
204. The Universe is Written in the Language of Mathematics Absent
205. Universe of Zeroes and Ones Absent
206. Dawn of the Computer Fantasy
207. Linking the Circuit Diagram Absent
208. Science Transcends Humanity Absent
209. The Rocket's Hard Truth Absent
210. Not One-Way Absent
211. World Tour for Resources Absent
212. Final Part: Stone to Space Appears


  • Chalk is probably thus named because of his perfectly white fur.
  • Chalk may be descended from the dog shown on page 25 of Chapter 1.[18]


  1. Dr. Stone Manga: Chapter 193, Page 19
  2. Dr. Stone Manga: Chapter 94, Page 13
  3. Dr. Stone Manga: Chapter 79, Page 9
  4. Dr. Stone Manga: Chapter 84, Page 13
  5. Dr. Stone Manga: Chapter 22
  6. Dr. Stone Manga: Chapter 28
  7. Dr. Stone Manga: Chapter 33
  8. Dr. Stone Manga: Chapter 39
  9. Dr. Stone Manga: Chapter 41
  10. Dr. Stone Manga: Chapter 48
  11. Dr. Stone Manga: Chapter 62
  12. Dr. Stone Manga: Chapter 79
  13. Dr. Stone Manga: Chapter 84
  14. Dr. Stone Manga: Chapter 94
  15. Dr. Stone Manga: Chapter 141
  16. Dr. Stone Manga: Chapter 193
  17. Dr. Stone Manga: Chapter 212
  18. Dr. Stone Manga: Chapter 50 — Q&A

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