Soyuz (ソユーズ Soyūzu) is a former member of Ishigami Village and the long-lost son of the leader of the Petrification Kingdom. After Ibara's defeat, Soyuz claimed his rightful place as the leader of the Petrification Kingdom, enlisting Kirisame as his replacement within the Kingdom of Science’s ranks.


Soyuz is a young man, with a bald head, large round eyes and a distinct cross-shaped scar on top of his head.

He is shirtless, wears a large shield on his back held by a rope strap that is slung around his shoulder, and baggy pants that reach only past his knees.



Soyuz is a quiet and reserved man living in Ishigami VIllage. He is rather shy when it comes to women, incapable of resisting the charms of Amaryllis, and becoming incredibly flustered around Kohaku when she changes.

Being royalty himself, he has his father's kindness and wisdom, a natural leader just like him.

Abilities and Skills

Photographic Memory

Soyuz possesses an incredible memory, able to remember things from even when he was a baby. When searching for the petrified people who fell into the sea, he was able to remember where the people were thrown from and the way they were moved by the currents, implying he has a photographic memory. He also managed to memorize the formula of the Revival Fluid in a short amount of time. It is later revealed that this is because he inherited his mother's great memory.


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Little known about Soyuz’s childhood life, he was a child of the leader of the Petrification Kingdom.

During Ibara’s hostile takeover on his home kingdom, he made an attempt to kill the infant Soyuz, however, the said infant was saved by a young woman who was loyal to his father and ended up being framed by Ibara as a kidnapper attempting to kidnap Soyuz. Thanks to the woman's sacrifice, Soyuz ended up in Ishigami Village safely.


Age of Exploration Arc

He is selected to be apart of the crew of the Perseus, Ryusui notes that he doesn't have a name.

Treasure Island Arc

During the voyage to Treasure Island, he reveals to the others that he was actually from outside Ishigami Village, having drifted there when he was a baby. He then leads the others to the island where he came from.

When they learn of Amaryllis' plan to infiltrate the harem, they realize she needs help to do so. Soyuz was shocked to realized that Kohaku was needed to do so. He was worried about the plan because of her tomboyish nature and lack of etiquette.

Soon they witnessed Ibara and his men storming the Perseus. When Kohaku yelled the word lab, Soyuz realized that only someone from the Kingdom of Science would know that word and believe she was trying to find a survivor.[3]Surely enough one of the survivors turned out to be Ginro. Soyuz was disappointed that it was him along with the others, especially when he begs them for help. However, Ginro with help from Suika were able to reclaim the mobile lab and sneak by the enemies who mistake it for an animal.[4][5]

He aids in the construction of the oxygen tanks and they are complete after several hours. When they are done, he is amazed actually breathe underwater. He and Ryusui look for the petrified who were thrown into the ocean. With his exceptional memory and help from a depetrified Taiju, they manage to find all the people who were tossed into the ocean, though Soyuz was amazed by Taiju doing it it single-handedly before offering him a ride in the boat. [6]

He helps Yuzuriha Ogawa repair the broken statues, using his memory to distinguish them. When a frantic Amaryllis reports on her experience, Soyuz is shocked to hear he might be related to the original leader. [7]

When Mozu approached, Soyuz witnesses Gen bargaining with Mozu. After he escorts the warrior out, he joins in congratulating the mentalist when he is successful.[8]

The group then decide to split into groups with one deciding to show the whole petrification kingdom the true state of the head. However they discovered that his statue was already destroyed by the evil minister but Yuzuriha planned to recreate the statue. While doing so, he finally recalls his memory of him while become happy at finally reuniting with his father.[9]

They eventually succeed and Soyuz is disappointed to hear that his father can't be revived because he is missing pieces. [10]

Soyuz aids the others in getting the word of the Head of Petrification Kingdom being a statue out to the others. [11]\

He notices Oarashi running in a frenzy and realizes he plans to head to the island's center and Ukyo has Taiju yell to the others on this. After Taiju tackles him, they are warned by Amaryllis to throw away the device since Ibara likely activated it but Oarashi had swallowed it and it activates, to Soyuz' horror.[12]

When Ibara petrified the island, Soyuz and his allies put their faith in Senku to win. Ibara came across the statue of Soyuz and taunted him on coming home to fail.[13]

Once Ibara is defeated, Soyuz is revived by Senku. Soyuz helps Senku and the others revive their allies. He is dismayed when Kirisame kneels to him, during the celebration.[14]

New America City Arc

He recognizes the shape of the device once the group are confused by Whyman's call. Soyuz helps Taiju with bringing up the unidentified statue. The symbol on the person's detached arm is the same as the shape of the petrification device. Soyuz reattaches the arm and watches the man being revived.[15]

Soyuz joins the others in reviving the islanders, although he is disappointed to hear that his father can't be revived. Regardless, he is recognized by the islanders as the leader's son. The next day, he decides to stay behind and become the new head of the Petrification kingdom. He tells Senku that he remembers how to make the revival formula and will be reviving the remaining petrified islanders. He asks Kirisame to take his place within the Kingdom of Science to defeat the Whyman. A teary eyed Soyuz bids his friends farewell, as they sail off.[16]

Chapter Appearances

Chapter Appearances
v  d  e
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 Absent
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 Absent
29. Senku's Lab Absent
30. Death Green Absent
31. Friends Have Each Other's Backs Absent
32. Brain & Heart Absent
33. Baaad Chemicals Absent
v  d  e
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... Absent
40. Two Million Years in the Making Absent
v  d  e
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 Absent
v  d  e
Vs. Hyoga Arc
46. Stone Wars Absent
47. Science Vs. Power Absent
48. Blades of Science Absent
49. To the Present Absent
50. Humanity's Greatest Weapon Absent
v  d  e
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 Hear 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 Absent
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 Absent
80. Humanity's Strongest Tag Team Absent
81. Fingertip Absent
82. Epilogue of Stone Wars (End of Part 2) Absent
v  d  e
Age of Exploration Arc
83. Dr. Stone Absent
84. People = Power Absent
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 Absent
95. First Contact Absent
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
v  d  e
Treasure Island Arc
101. Treasure Chest Debut
102. Perseus, Ship of Science Appears
103. Light of Hope and Despair Appears
104. Men of Forensics Appears
105. The Island's Great Beauty Appears
106. The Secret of Petrification Pictured
107. To the Trump Card Science Vessel Appears
108. Two Trump Cards Pictured
109. The Great Escape Appears
110. Beautiful Science Appears
111. Science Wars Appears
112. King of Three Dimensions Pictured
113. Cryptography Science Appears
114. Silently, Science Pierces the Stone Appears
115. One Second, One Grain Pictured
116. Miracle in Hand Appears
117. The Kingdom of Science Strikes Back Appears
118. Silent Soldiers Appears
119. Science Soldiers Appears
120. Top Secret Pictured
121. Medusa's True Face Mentioned
122. Brain-Battle Puzzle Pieces Pictured
123. The Battle of Wits' Deal Game Pictured
124. The Invention of God and the Devil Appears
125. The Decisive Three-Dimensional Battle Absent
126. A 3-D Strategy Absent
127. Medusa and Perseus Pictured
128. Island-Wide Battle Royale Appears
129. Joker Absent
130. Devil's Choice Appears
131. Nasty Crimes Appears
132. The Strongest Weapon Is... Absent
133. Flash of Destruction Appears
134. Commander Faceoff Petrified
135. Counting Absent
136. Medusa Vs. Science Absent
137. Last Man Standing Petrified
138. End Of Part 3 Absent
v  d  e
New America City Arc
139. First Dream Appears
140. New World Plots Appears
141. First Team Absent
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
v  d  e
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


  • "Soyuz" means "union" in Russian.
  • His name is the same as the spaceship that led Byakuya, Lillian and Shamil to the ISS in Chapter 43, the Soyuz.
  • He uses a sickle and a hammer which is the symbol of the USSR.
  • The X on his head is a reference to the presence of the astronauts' treasure on his native island.
  • Although first appearing in Chapter 17 he was nameless until Chapter 101.


  1. Dr. Stone Manga — Chapter 133, Soyuz is petrified while chasing Oarashi
  2. Dr. Stone Manga — Chapter 138
  3. Dr. Stone Manga: Chapter 107
  4. Dr. Stone Manga: Chapter 108
  5. Dr. Stone Manga: Chapter 109
  6. Dr. Stone Manga: Chapter 117
  7. Dr. Stone Manga: Chapter 122
  8. Dr. Stone Manga: Chapter 123
  9. Dr. Stone Manga: Chapter 128
  10. Dr. Stone Manga: Chapter 130
  11. Dr. Stone Manga: Chapter 131
  12. Dr. Stone Manga: Chapter 133
  13. Dr. Stone Manga: Chapter 134
  14. Dr. Stone Manga: Chapter 138
  15. Dr. Stone Manga: Chapter 139
  16. Dr. Stone Manga: Chapter 140

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