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"You're smarter than you look, Magma."

— Chrome, Dr. Stone (Manga), Chapter 37

Magma (マグマ Maguma) is a villager from Ishigami Village. Magma is known for being one of the strongest warriors of all the village.


Magma is a large, muscular man with slicked-back blond hair that brushes the top of his shoulders, with a single lock falling in front of his face. He has thick, pointed eyebrows that are usually furrowed. His chin is prominent and he has a strong jawline. His physique is thick and muscled, significantly more than any of the other villagers, only rivaled by Tsukasa and Hyoga's henchmen.

His usual clothing is a dark blue tunic with short sleeves that displays his voluptuous chest. Underneath, he wears very dark-colored pants that are tied around the ankle. Like most villagers, he lacks accessories, however he has two bracelets made of brown-leather thonging on his wrists. He wears the village rope around his waist as a belt. During the winter, he wears a long coat with fur trim along the hems.

On Treasure Island, he temporarily wears a simplified version of his outfit: a dark open tunic, laced at the front with thick flat ribbon and a belt made of his village rope. Underneath, he wears a pale skirt/shorts to protect his modesty. His shoes are gone, but his bracelets remain.[10]


Magma is an extremely ambitious person aiming to become the chief of Ishigami Village.[11]

He is shown as being willing to kill to get his way when he attempts to kill Gen, believing him to be Senku. He also initially has paranoia of outsiders such as Gen and Senku, attempting to kill Gen partially because he believed he was a magician and that by eliminating him, he would remain the strongest. This also demonstrates his superiority complex, an obsessive need to prove himself to be the strongest.

He was shown to be rather gullible in the Grand Bout, falling for a trick Gen played on him pretending to have put a curse that would destroy his heart on him.

This would later be the reason behind his rivalry with Yo as both often compete with each other to prove who is better (especially between pre-petrification humans and post-petrification humans).

He also tends to be impulsive and acts before thinking, such as smashing the tungsten that he, Chrome, and Senku brought from the cave once he heard Senku mention he needed something out of the rocks (though he was in a way correct as Senku did need the tungsten smashed) and when Hyoga invaded the village, his first reaction was to attack him one on one without thinking about a strategy or teaming up with Kinro and Kohaku (as all three of them are the strongest fighters of the village and would have a better chance fighting together).

He tends to remark that when faced against a powerful opponent or army, they should simply slaughter everyone, proving his merciless nature and one track mind (without considering the disadvantages of such a strategy or a more peaceful alternative). He once even asked if they could simply smash the stone statues Tsukasa collected so they could dwindle their numbers and lessen the amount of people Tsukasa could revive for his army. This is seen again when going against the foes of Treasure Island. Magma is also sadistic at times, wanting Ruri to watch him hit Chrome over and over again, knowing that they have affections for each other.[12]

Despite this, he eventually cannot bring himself to kill Chrome and Senku. When alone with them in a cave, he chooses to save them from a cave collapse rather than use the opportunity to kill them. He claims that the inventions Senku makes are interesting and so long as he keeps making interesting things, he will not kill him. This is reaffirmed in a conversation with his lackey Mantle, where he states he still desires the village chief position, but not to murder Senku.

He even begins to willingly lend his help to Senku and similarly helps Gen set up a telescope as a birthday surprise for Senku. Also, despite being impulsive, seeing violence as the first and only solution, and charging into battle head first without thinking, he does have some tactical strategy. He can also genuinely admire and respect other people's abilities and strengths. As stated above, he does grow to respect Senku's intelligence and ability to bring new wonders to the village, which ultimately causes him to cease his desire to murder him. He understood and recognized Kohaku's strength. He also admired Kinro's strength and wanted him to be his lackey.

He even compliments and admires Taiju's strong will and bottomless stamina and strength when they were farming. Similarly, he seems to grow a little, managing to recognize abilities beyond strength, such as Senku's intelligence, and he admires Gen's skills and even asks him to be his lackey, despite having once tried to murder Gen.[13]

Abilities and Skills[]

Magma has an extreme amount of physical strength and endurance, able to withstand a large flurry of attacks from Kinro in the Village Games and go on to win.

Despite his strength, he is inferior to Tsukasa, Hyoga, Moz, and Kohaku who easily swat him aside.

Surprisingly, he appears to be skilled with math being able to give the correct answer in the Mathlympics. This was met with surprise by Ginro, Kohaku, and Chrome, especially when Sai and Senku confirm that Magma was right.[14]


While he is first introduced as a staff fighter for Grand Bout purposes, his primary weapon of choice is a single-headed axe, slightly larger than a hatchet, that he can use with one hand. In the second fight against the Tsukasa Empire, Senku gave him a katana that he lost when he bore the brunt of Hyoga's Kan-Ryu spear attack. While he used Ginro's katana to finish the fight, he afterwards reverted to his axe. It's unclear whether the current composition is stone or steel.


5/5 A
2/5 D
1/5 E
3/5 C
Magma's stats, according to Volume 6

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 Mentioned
18. Sorcery Showdown Absent
19. Two Million Years of Being Absent
20. Stone Road Debut
21. Dawn of Iron Absent
22. Survival Gourmet Absent
23. The Smooth Talker Absent
24. Lightning Speed!!! Appears
25. By These Hands, the Light of Science Absent
26. A Shadow Alliance Shadow
27. A Certain Scientists Wish Appears
28. Clear World Absent
29. Senku's Lab Absent
30. Death Green Absent
31. Friends Have Each Other's Backs Absent
32. Brain & Heart Flashback
33. Baaad Chemicals Pictured
Village Games Arc
34. Sneaky Grand Bout Strategy Appears
35. The Masked Warrior Appears
36. Kinro and Ginro Appears
37. Science-User Chrome Absent
38. Master of Flame Appears
39. And the Winner is... Appears
40. Two Million Years in the Making Absent
Village Origins Arc
41. Doctor Stone Absent
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 Pictured
Vs. Hyoga Arc
46. Stone Wars Appears
47. Science Vs. Power Absent
48. Blades of Science Appears
49. To the Present Absent
50. Humanity's Greatest Weapon Appears
Communications Arc
51. Sweets for the Stone World Appears
52. Age of Energy Absent
53. Hard Knocks Crafting Club Pictured
54. Flickering Blue Jewel Appears
55. Treasure Dungeon Push Start Appears
56. The Treasure Appears
57. Heat Heart Appears
58. Wave of Science Pictured
59. Voices from Here to Infinity Appears
60. Angel's Song, Devil's Whisper Absent
61. Stone Wars Begin Appears
62. Double Chase Appears
63. Information Warfare Appears
64. Hotline Appears
65. Call From the Dead Appears
66. Liars and Truth Tellers Absent
67. Full Mobilization Appears
68. Flame of Revolution Appears
69. Steam Gorilla Appears
70. Paper Shield Appears
71. Prison Break Absent
72. Experience Points Absent
73. Top-Secret Mission Appears
74. Fateful 20 Seconds Pictured
75. 20-Second Countdown Appears
76. Final Battle Pictured
77. The Power of Science Pictured
78. That Which Destroys or Saves Pictured
79. For This Very Moment Absent
80. Humanity's Strongest Tag Team Absent
81. Fingertip Absent
82. Epilogue of Stone Wars (End of Part 2) Appears
Age of Exploration Arc
83. Dr. Stone Absent
84. People = Power Appears
85. Ultimate Resource Appears
86. Money Absent
87. Senku's Department Store Appears
88. Wings of Humanity Appears
89. Adventures Absent
90. New World Map Absent
91. Need Bread? Start with Wheat Appears
92. Desire is Noble Absent
93. The First Shot Is Yours Absent
94. The Scent of Black Gold Appears
95. First Contact Absent
96. Eye of Science Pictured
97. The Joy of Leadership Pictured
98. Ryusui Appears
99. Kingdom of Science Photo Journal Appears
100. Origin of the 100 Tales Appears
Treasure Island Arc
101. Treasure Chest Absent
102. Perseus, Ship of Science Appears
103. Light of Hope and Despair Appears
104. Men of Forensics Absent
105. The Island's Great Beauty Absent
106. The Secret of Petrification Absent
107. To the Trump Card Science Vessel Absent
108. Two Trump Cards Absent
109. The Great Escape Absent
110. Beautiful Science Mentioned
111. Science Wars Absent
112. King of Three Dimensions Absent
113. Cryptography Science Fantasy
114. Silently, Science Pierces the Stone Fantasy
115. One Second, One Grain Absent
116. Miracle in Hand Absent
117. The Kingdom of Science Strikes Back Petrified
118. Silent Soldiers Absent
119. Science Soldiers Absent
120. Top Secret Absent
121. Medusa's True Face Absent
122. Brain-Battle Puzzle Pieces Absent
123. The Battle of Wits' Deal Game Absent
124. The Invention of God and the Devil Absent
125. The Decisive Three-Dimensional Battle Pictured
126. A 3-D Strategy Absent
127. Medusa and Perseus Appears
128. Island-Wide Battle Royale Appears
129. Joker Appears
130. Devil's Choice Appears
131. Nasty Crimes Absent
132. The Strongest Weapon Is... Appears
133. Flash of Destruction Pictured
134. Commander Faceoff Absent
135. Counting Petrified
136. Medusa Vs. Science Absent
137. Last Man Standing Absent
138. End Of Part 3 Appears
New America City Arc
139. First Dream Absent
140. New World Plots Appears
141. First Team Appears
142. World Power Absent
143. Ryusui vs. Senku Pictured
144. Ryusui & Gen vs. Senku & Kohaku Absent
145. Bar Francois Absent
146. Bar Francois: Bitters Pictured
147. Science Journey Pictured
148. Pioneers of Earth Appears
149. Light Lure in Darkness Absent
150. Righteous Science User Absent
151. Dr. X Absent
152. Doctor Vs. Doctor Appears
153. Science Wars Appears
154. Spy vs. Spy Absent
155. Science Is Elegant Pictured
156. Two Scientists Absent
157. Same Time, Same Place Absent
158. Who's the Scientist? Absent
159. Lock On Absent
160. Gunshots Echo Pictured
161. Craft Wars Appears
162. Down the Earth-Stained Path Absent
163. Multifront Final Battle Absent
164. Re-Lock On Flashback
165. Know the Rules, Make the Rules Appears
166. Ultimate Knight Absent
167. Different Strokes Flashback
168. Corn City: Population One Million Pictured
169. RISK or HEART Appears
South America Arc
170. Staring Up at the Same Moon Pictured
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 Appears
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 Appears
183. Stone Sanctuary Appears
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 Appears
191. Divine Scream, Down to Earth Appears
192. Until We Meet Again Absent
193. Our Stone World Absent
New Stone World Arc
194. Homo Sapiens, All Alone Petrified
195. Treasure Hunter, All Alone Absent
196. Scientist, All Alone Absent
197. A Stony Eden and Its Forbidden Fruit Absent
198. Whole New World Fantasy
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 Pictured
207. Linking the Circuit Diagram Absent
208. Science Transcends Humanity Appears
209. The Rocket's Hard Truth Absent
210. Not One-Way Absent
211. World Tour for Resources Absent
212. Final Part: Stone to Space Absent
Moon Mission Arc
213. Unknown Known Absent
214. Stone World's Earth Defense Force Pictured
215. Long, Long Road Absent
216. Hello, World Absent
217. Science Underdogs Absent
218. WWW (World Wide Workshop) Absent
219. Three Heroes Appears
220. A Desire for All Absent
221. Entrusting It All Absent
222. Science Road Appears
223. 0 Pictured
224. In Space Absent
225. Docking Absent
226. Giant Step Absent
227. It Was You Absent
228. Life Stone Absent
229. Why-Man Flashback
230. Human Absent
231. A Future To Get Excited About Absent
232. Final Chapter: Dr. STONE Pictured


  • (On several occasions) "MWA HA HA!"[15]
  • (To Mantle and Carbo, regarding the Kingdom of Science) "I'll kill 'em all. Leave it to me!!"[16]
  • (To Kinro) "There's always room for a strong fighter at my side!!"[17]
  • (To Kinro) "I knew you'd do the right thing like a good boy!"[18]
  • (To Chrome) "I'm gonna work you over so good you'll never walk again."[19]
  • (To Senku) "Dammit, Senku. If only... If only you had never showed up in Ishigami Village that day! I would've ruled them all, since I'm the strongest!! I would've been top dog!!"[20]
  • (To Senku) "I don't care if you're the boss... At least until we take down that Tsukasa guy! But if the crap you're showing me ever gets boring, you're dead meat!!"[21]
  • (To Senku) "That's no way to order people around! How about a "please"?!"[22]
  • (To Mantle and Namari, regarding Senku) "The guy makes some fun stuff, I'll give him that. And that's reason enough. So no... He doesn't need to die! But that doesn't mean I've given up on the chief's throne!"[23]


  • His name is a reference to the molten rock found in the upper mantle and just underneath the Earth's crust.
  • Despite the claims that he was the strongest man in the village, he personally admires Taiju Oki due to his "unlimited stamina" where Taiju did not get exhausted when handling the farm field.
  • Due to Magma's impulsiveness, Senku is careful about explaining science in front of him. Unless brute force is needed, Magma is typically kept busy with gathering wood for materials.
  • Magma tends to get punished by Nikki for his rash behavior. She's kicked him in the crotch and slammed her fists on his head on two separate occasions.
  • Magma also gets into conflict with Yo Uei about modern timers being superior to the Stone World primitives.
  • Magma is the most popular hunk amongst the villagers due to his physical prowess.[24]
  • Magma is the only villager other than Kokuyo and Suika who appears to wear two layers of clothing (not counting winter outfits).
  • Magma won the Mathlympics.
  • Magma's English voice actor is the real-life husband of Gen's voice actor.


  1. Dr. Stone Manga: Chapter 56, Page 5
  2. 2.0 2.1 2.2 Dr. Stone: Kingdom of Science Encyclopedia, Page 66
  3. Dr. Stone Manga: Volume 19 — Extras
  4. Dr. Stone Manga: Chapter 103, Page 15, Magma is petrified along with majority of the Perseus Crew.
  5. Dr. Stone Manga: Chapter 125, Page 12, Magma is revived by Senku
  6. Dr. Stone Manga: Chapter 134, Page 8, Magma is petrified along with the rest of the island.
  7. Dr. Stone Manga: Chapter 138, Page 6, Magma is revived along with everyone else on the Perseus.
  8. Dr. Stone Manga: Chapter 191, Page 19, Magma is petrified along with the rest of Corn City.
  9. Dr. Stone Manga: Chapter 206, Page 5, Magma is revived in Corn City.
  10. Dr. Stone Manga: Chapter 127, Page 14
  11. Dr. Stone Manga: Chapter 27, Page 8
  12. Dr. Stone Manga: Chapter 37, Page 14
  13. Dr. Stone Manga: Chapter 26, Page 9
  14. Dr. Stone Manga: Chapter 208, Page 14
  15. Dr. Stone Manga: Chapter 34, Page 17
  16. Dr. Stone Manga: Chapter 24, Page 10
  17. Dr. Stone Manga: Chapter 34, Page 16
  18. Dr. Stone Manga: Chapter 36, Page 4
  19. Dr. Stone Manga: Chapter 37, Page 13
  20. Dr. Stone Manga: Chapter 55, Page 10
  21. Dr. Stone Manga: Chapter 55, Page 18
  22. Dr. Stone Manga: Chapter 75, Page 7
  23. Dr. Stone Manga: Chapter 84, Page 9
  24. Dr. Stone Manga: Chapter 22 — Q&A

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