Chrome (クロム, Kuromu) is the sorcerer (eventually scientist) of Ishigami Village and Senku's friend. Originally a rival, he grew close to Senku as the de-petrified human taught him the art of science. He is one of the protagonists of the series.

As part of the Kingdom of Science, Chrome serves as the unofficial right hand of Senku; this trust is what makes him one of the Five Wise Generals. Gifted in both chemical knowledge and crafting, Chrome tends to alternate between making chemicals with Senku and building with Kaseki.


Dr stone manga chrome render by kaneki332 ddh4ktv-fullview


Chrome is a young man of average height and build. He has spiky brown hair and keeps a rope tied around his head like a headband.

His usual outfit consists of a short-sleeved, dark blue shirt, matching pants, a rope belt, and satchels that contain materials he's collected. Sometimes, he will also don a cape that matches the color of his outfit as well. 


Chrome is a high energy person with a lot of passion and curiosity. He is genuinely interested in science, although at first, he only knows it as sorcery. Chrome is confident in his intellect, enough so to go toe to toe with Senku despite getting destroyed in a battle of wits.

Chrome cares little about a person's age when it comes to friendships, as he considers Kaseki as one of his greatest friends even though he's more than 50 years older than Chrome. He also has a tendency to refer to something as "bad" when he thinks it is cool or amazing

Chrome has a deep love of science, though he admits his expertise and knowledge lies mainly in exploration, particularly pertaining to rocks and minerals and gathering them. He even becomes offended when Ryusui refers to himself as a pro adventurer while he refers to Chrome as an amateur. He is loyal to his friends and, while lacking in physical abilities (quite similarly to Senku), he is still able to think of clever solutions out of dangerous situations.

Since he has proclaimed himself a scientist, Chrome has become very defensive of his title; he despises people getting it wrong and mocking science.

Chrome first appearance

Chrome's enthusiastic passion.

Chrome is also exceedingly brave and loyal, managing to withstand Tsukasa's torture and death threats and refusing to speak about Ishigami Village or the progress of Senku's inventions. In addition, while he is usually a loudmouth, he knows when to keep his mouth shut. He loves science and, in many ways, is an accomplished scientist in his own right, managing to create chemical reactions from the rocks he collected through frequent trial and error (reactions which were only made known in the seventeenth century), despite never knowing this knowledge beforehand and before Senku's arrival.

In addition, he is naturally inquisitive and loves helping make inventions. When he was left out of making the automobile, he was notably disheartened. When he managed to ride a hot air balloon for the first time, he was both amazed and frustrated by the progress of the modern era prior to petrification and wanted to learn more of the world. Also, in spite of his naivety when it comes to the outside world, he is shown to be wary of those he distrusts, evident when he did not trust him and Senku being alone in a cave with Magma as he believed Magma would attempt to murder them.

Chrome is selfless, especially when it comes to his friends, as he entered the village tournament that would determine Ruri's husband so Magma would not win (since Magma would ensure she did not survive her illness) and knew Kinro or Ginro would have better chances of winning, but did not mind who married her so long as she would be cured. He has strong feelings for Ruri, but as stated by Kohaku, he doesn't seem to be aware of his own feelings.

Though at first threatened by the arrival of Senku, another "sorcerer," the two quickly become close friends due to their mutual love of science and he becomes Senku's main ally and confidant in Ishigami village (aside from Gen) when it comes to their plans and inventions as the three often use their science and manipulation to find ways of creating a bloodless war against Tsukasa's Tsukasa Empire and later to go against the Whyman.

Chrome shares some of Senku's deviousness, but not to the same degree as Gen does. Regardless, thanks to his levelheaded thinking and analytical prowess, Chrome is the only member of the Five Wise Generals to not be a pre-petrification human.

Abilities and Skills


Compared to the rest of Ishigami Village, Chrome is rather intelligent and curious. He and Kaseki are the only original members of Ishigami Village to possess any scientific knowledge. He was labeled as the village sorcerer due to his ability to use the materials around the village for "magic". He also has slightly-above average skill in arithmetic, only considered an expert at it due to no one knowing better. It's confirmed by Riichiro Inagaki that Chrome would have high grades and tie with Tsukasa in a school setting.

Chrome's intelligence is best shown when he comprehended half of Senku's explanation about the basics of how sound travels through phones. He is also good at memorizing Senku's ridiculous "road maps"/blueprints.

Physical Abilities

In terms of physical ability, Chrome is rather average when compared to the likes of Kohaku, Magma, and Kinro, but is still skilled enough to to hold his own against someone like Mantle. Despite this, Tsukasa himself noted that if he went on a voyage, he would more likely choose Chrome over Senku, despite Senku's superior intellect, because Chrome is more physically fit. In fact, Chrome would often use pole vaults to gather his materials and used this ability to pole vault his way around Tsukasa's traps.


Since he was young, Chrome has always enjoyed collecting things and would store them in a tower. He would mix, smash, and burn the things he found and labeled any weird or strange reactions as sorcery.


Kingdom of Science Arc

After noticing bubbles from the village, he goes to investigate and meets Senku, introducing himself as the "genius sorcerer of the village." He then explains a bit of knowledge about the bubbles to Kinro and Ginro, which catches Senku's interest. Chrome then leads everyone to his shed for a sorcery battle against Senku, demonstrating his first sorcery technique, "Rainbow Bridge" in which he throws various minerals into a fire to change its color, frightening Kohaku, Ginro, and Kinro. However, Senku is largely unimpressed and explains the science behind it right down to the minerals that Chrome used, much to his great surprise, leading to Chrome thinking that Senku can read his mind. Chrome then brings out a sulfur ball to deliver a static shock to Ginro, but Senku takes the ball and shows him a much more efficient way to generate static by using his Kingdom of Science flag rather than his hands, generating enough static to electrocute Chrome. Senku becomes impressed by Chrome's scientific knowledge and decides to recruit Chrome into the Kingdom of Science, but Chrome refuses to back down and challenges Senku to another battle in which if Senku loses, then he must bow to Chrome and leave the village, but if Senku wins, then Chrome will work for Senku. Chrome declares a battle of Arithmetics, which he loses easily, resulting in him joining the Kingdom of Science. In the shed, Senku notices a lot of minerals that Chrome has collected, including cinnabar, which he uses to coat Kinro's spear in gold. He also notices many medicinal herbs and Chrome explains that he's been trying to cure Ruri of her sickness. That night, Senku tells Chrome what the world was like before the petrification, including all the scientific achievements of humanity, resulting in Chrome crying over how all the scientific knowledge and achievements have been lost to time, but Senku reassures him that it's not all gone and that they can rebuild everything. Chrome then becomes determined to build the Kingdom of Science and help Ruri feel better.

The next day, Senku explains his plans for creating antibiotics, creating sulfa drugs with minerals, in which Chrome becomes fascinated by the new minerals that he never heard of. That night, Chrome becomes fascinated by Senku's explanation of how it's the Earth that moves around the sun, which eventually leads to Senku wondering how Kohaku knew that the North Star was no longer True North. Chrome then boasts about a special rock that always points True North, only for Senku to identify it as a magnet, much to his surprise. The next day, Senku, Chrome, and Kohaku head down to a river to fish for iron sand with the magnet where they meet Suika who wishes to help them. Once they collect enough iron sand, the four attempts to melt it down in a furnace, but the heavy physical strain of having to heat up the iron sand prevents them from getting anywhere, requiring the Kingdom of Science to get more manpower. Suika goes on a reconnaissance mission to find out what the people want and the group concludes that food is the best way to get people on their side, leading to Senku making ramen using foxtail millet. Chrome is the first to taste the unfamiliar dish and greatly enjoys it.

When making glass, he recruits Kaseki to help.

He almost falls into the sulfuric acid but is saved by Ginro.

Village Games Arc

He battles Mantle and wins after Mantle throws the match. He battles Magma and wins after setting his clothes on fire. He faints after battling with Magma, making Senku the winner of the village games.

Vs. Hyoga Arc

He aids Kaseki and Senku in making iron weapons to battle the Empire of Might.

When Homura set the village ablaze, Chrome helps with the evacuation to get the villagers to safety.

Communications Arc

Chrome, along with Kaseki, spends three days building a water wheel/mill, but to their surprise, Senku already knew about this invention. The water wheel is then used, along with the cotton candy tool, to create an electrical hydro-powered generator.[6] He aids Senku in inventing phones. He suggests that they use lightbulbs to explore caves and joins Magma and Senku in an expedition. He saves them after they fall into a hole by flooding the hole so they can swim up.[7]

He is captured by the Tsukasa Empire, and manages to escape after receiving a battery from Ukyo and tricking Yo.

Age of Exploration Arc

He, Senku and Ryusui ride in the hot air balloon. He uses the radar to find iron ore.

Chrome later rides on the newly created motorboat and speaks to Ruri before the communication breaks up. He is shocked to receive a signal from, a mysterious individual and Senku believes it might be the one responsible for the petrification.

Chrome is later recognized as one of the Five Wise Generals of the Kingdom of Science, though Kohaku jokes on his position.

After a year of building, the Kingdom's ship the Perseus is created.

Treasure Island Arc

During the voyage, Chrome learns of Soyuz being from another tribe on Treasure Island. With help from Senku, Chrome deduces some of the humans came to Ishigami Village and are ancestors to the current resident. Chrome also brings up the possibility of Whyman being a member of the newly reveal human tribe Soyuz is from.

He is petrified by Ibara and is the first one broken into pieces, having been knocked over in statue form.

He is later recovered by Taiju and the others and fully reassembled before being revived. Once revived, Chrome is excited at witnessing petrification and is updated on the plans. Chrome witnesses Gen bargaining with Mozu, congratulating the mentalist when he is successful.[8]

He is petrified again when Ibara petrifies the whole island and is later depetrified by Senku.

New America City Arc

When Senku was preparing to revive Hyoga, Chrome asks if he is sure that the latter should be revived. As Senku states they have Tsukasa and a gun to ensure he stays in line. They also Hyoga's request to revive Homura and Mozu.[9]

During a storm, Chrome gets an idea to navigate through it. Retrieving a stone from their collection, he asks Kohaku to carve it into a prism. Chrome puts the prism into a viewing device with a rocket-shaped hole and brings it to the deck. Chrome uses his device to find the sun, and Senku excitedly notes that the prism is made of calcite, a naturally transparent stone. Ryusui remembers that calcite had been discovered in the wrecks of Viking longships, and Ukyo remarks that the legend seems to be true.[10]


  1. 1.0 1.1 Dr. Stone Manga; Volume 4, Q&A Section
  2. Dr. Stone Manga — Chapter 103, Chrome is Petrified along with majority of the Perseus Crew.
  3. Dr. Stone Manga — Chapter 122, Chrome is revived along with Yuzuriha and Ukyo.
  4. Dr. Stone Manga — Chapter 133, Chrome is petrified while chasing Oarashi
  5. Dr. Stone Manga: Chapter 138
  6. Dr. Stone Manga: Chapter 52
  7. Dr. Stone Manga: Chapter 54
  8. Dr. Stone Manga: Chapter 123
  9. Dr. Stone Manga: Chapter 146
  10. Dr. Stone Manga: Chapter 147


  • His name, Chrome, is a reference to the chemical element Chromium, its elemental symbol Cr and atomic number 24.

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Kingdom of Science
Male Taiju OkiSenku IshigamiGen AsagiriChromeKasekiKinroGinroMagmaKokuyoRyusui NanamiMatsukazeTsukasa ShishioHyogaMozu
Female Yuzuriha OgawaRuriKohakuSuikaNikki HanadaMinami HokutozaiKirisameHomura Momiji
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Post Petrification Humans
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