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Alumi (あるみ Arumi) is one of the villagers of Ishigami Village. She is the mother of Carbo and the wife of Natri.


Alumi is an older woman, shrunken with age. She has fairly straight, mid-length hair that's shorter in the front and longer at the back. Her eyebrows are thin and black, mostly hidden behind her hair. Her eyes are quite large but droopy, having crow's feet and visible sagging underneath. She has laugh lines around her mouth and no visible lips. She generally has a happy expression on her face.

She wears an olive-green dress with sleeves ending just above her elbows, with the rest of it ending above her ankles. Alumi wears no belt, and instead opts to wear the village rope around her neck, resting on top of what looks like even more, thinner ropes.


Alumi is sweet and quietly thoughtful, taking a similar relaxed approach to the events of the story as Natri does. She seems wise in her age, having lived through a lot of events in Ishigami Village. She seems to be particularly interested in making sure everyone will survive, first commenting on possible losses in the winter, then asking if anyone died after the fight against the Tsukasa Empire, then saying they'll never have to lose anyone to starvation thanks to the hot air balloon's map. She's probably lost many friends and family over the years.

Abilities and Skills[]

Alumi seems to be in quite good health, helping the children make the gold thread needed for the cellphone. Apart from that, Alumi is never shown doing much else other than hanging around people-watching.


Alumi is first shown alongside Natri, listening to the discussion on the new outsider that arrived outside the village. She does not seem to have any opinion on it.[3] During the Grand Bout, she does not appear at all in the manga but is shown in the background in the anime.[4]

While making the cellphone, she helps the children twist the gold wire. She comments that she hopes they won't lose anyone over the winter due to the cold.[5] After the car is finished, she speaks alongside Natri to persuade Senku and the others that they'll be staying, and trust them to beat the Tsukasa Empire before they're in any danger.[6] She is then relieved when Chrome sends the call back to the village telling them they won.[7]

When Gen announces the boat design competition, Alumi asks Sho what the call from Mantle was about.[8] After the Kingdom of Science gain a hot air balloon and map the surrounding area, Alumi cries with relief that they'll never have to lose anyone to starvation ever again.[9]



Alumi spends a lot of time with her husband, Natri. It's rare for them to be depicted apart from each other, usually sharing the same panel/shot. They chat a lot about the goings-on in Ishigami Village and enjoy each other's company.

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 Pictured
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
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 Appears
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 Appears
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) Appears
Age of Exploration Arc
83. Dr. Stone Absent
84. People = Power Appears
85. Ultimate Resource Absent
86. Money Pictured
87. Senku's Department Store Absent
88. Wings of Humanity Pictured
89. Adventures Absent
90. New World Map Appears
91. Need Bread? Start with Wheat Absent
92. Desire is Noble Absent
93. The First Shot Is Yours Pictured
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
Treasure Island Arc
101. Treasure Chest Absent
102. Perseus, Ship of Science Absent
103. Light of Hope and Despair Absent
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 Absent
111. Science Wars Absent
112. King of Three Dimensions Absent
113. Cryptography Science Absent
114. Silently, Science Pierces the Stone Absent
115. One Second, One Grain Absent
116. Miracle in Hand Absent
117. The Kingdom of Science Strikes Back Absent
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 Absent
126. A 3-D Strategy Absent
127. Medusa and Perseus Absent
128. Island-Wide Battle Royale Absent
129. Joker Absent
130. Devil's Choice Absent
131. Nasty Crimes Absent
132. The Strongest Weapon Is... Absent
133. Flash of Destruction Absent
134. Commander Faceoff Absent
135. Counting Absent
136. Medusa Vs. Science Absent
137. Last Man Standing Pictured
138. End Of Part 3 Absent


  • Alumi is named after Aluminum, the 13th element of the periodic table.
  • Once the cellphones are set up, Alumi seems to stay near the one in Ishigami Village waiting for calls from Roppongi Hills, then later near the one set up for use as a GPS.


  1. Dr. Stone Manga: Chapter 193, Page 11, Alumi is petrified along with the rest of the world.
  2. Dr. Stone Manga: Chapter 212, Page 5
  3. Dr. Stone Manga: Chapter 22, Page 4
  4. Dr. Stone Anime: Episode 13
  5. Dr. Stone Manga: Chapter 58, Page 11
  6. Dr. Stone Manga: Chapter 69, Page 9
  7. Dr. Stone Manga: Chapter 82, Page 15
  8. Dr. Stone Manga: Chapter 84, Page 7
  9. Dr. Stone Manga: Chapter 90, Page 12

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