Ginro ( (ギン) (ロー) Ginrō) is Kinro's brother, and one of the village guards. He starts hanging around Senku during his stay in the village and is one of the first villagers to join the Kingdom of Science.

Essentially used like a "pack mule" for labor, Ginro tries shirking out of any job he's given regardless of the effort needed; Kohaku and Kinro usually drag him along. During the Treasure Island arc, Ginro manages to convince an unpetrified warrior to serve him, gaining protection from his former "tormentors".


Chapter 120 (3)

Disguised as a woman

Ginro is a rather short, androgynous young man with short blonde hair and green eyes. He seems to take after his mother in looks. Due to these traits, he is able to convincingly pass himself off as a girl, and uses this in conjunction with a disguise to (reluctantly) join the harem selection and infiltrate the Petrification Kingdom.

Ginro wears a karate gi-like uniform and belt. He, like his brother Kinro, carries his spear wherever he goes.


Ginro is the coward of the two guard brothers, albeit very full of himself and somewhat selfish. He's easily distracted by shiny things and Senku's antics, which ends with him usually working to further the scientist’s schemes. He is much more sincere in his cowardice and is rather open about his feelings. For example, he considered the possibility of having everyone run away from the village to avoid a fight with the Tsukasa Empire, though after Kohaku points out that only a scum bag would consider it as the elderly and children wouldn't be able to keep up, he claims he didn't think of such an idea.

There are two main sides to him: a kinder, gentler side that cares for his friends and family and a more scummy side to himself. There are times when his scummy meddling side wins over his nicer side, such as when he enters the village tournament to determine who would be village chief and wed Ruri. While he initially does so to protect Ruri from Magma, once he learns she is satisfied with marrying whoever wins, Ginro immediately decides to win so he can be chief and order people around, have ramen everyday, give everyone a harem, and be a "good chief" in his own words. The villagers are so disturbed that when he loses to Senku, they immediately cheer despite the fact they do not approve of Senku as an outsider. Similarly, when the Perseus sets sail, he refuses to board for fear of such a dangerous journey, though he pretends to swim after the ship in order to impress some girls. In addition, he tends to enjoy meddling in Chrome and Ruri's relationship. At one point, in an extra, he even suggests that he, Chrome, Kinro, and Senku attack Kohaku together to see who is stronger and claims it is "fair" since Kohaku is much stronger than all of them individually (though he had a fair point).

Ginro shows regret for his cowardice often and genuinely cares about his friends, to the point where he runs off to help Senku and Chrome in a dangerous situation where they were attempting to acquire sulfur from Sulfurina, a natural sulfur spring where the gas is poisonous to breathe in. Similarly, he refuses to cut the bridge from the village to the outside despite knowing that doing so would protect their village from Hyoga's forces, because his brother Kinro would have to be sacrificed. Recently, when his brother faces the prospect of being petrified, Ginro manages to overcome his fear to protect his brother with help from Suika. This proves that despite having a scummy cowardly side, he will ultimately endure any tough situation to protect his friends and family.

He can be somewhat lazy as he tends to slack off during his duties as a guard. He often complains when he and Kinro have to lend manpower to Senku's inventions, which physically exhaust them, and celebrated alongside Kinro when Senku built a power plant that would decrease their work. He also shows a perverted side, imagining what it would be like to marry Ruri and also showing interest when Senku tries to learn more about Homura, thinking Senku was discussing what type of woman he likes. He showed interest in the use of an x-ray to peek under women's clothes. Similarly, he enjoys showing off, particularly in front of cute girls, as he imagined himself looking cool while facing off during the village tournament, though in reality, was beaten badly before winning. He similarly swam to the Perseus to make it look like he was brave and wanted to join his friends on their dangerous journey to the outside world when, in reality, he believed he would not be able to reach the ship and would return to the island looking like a hero and getting several girls to like him.

Abilities and Skills

While not as a good a warrior as Kinro, he possesses some skill.

Physical Abilities

Ginro does not appear to be physically strong by any means. He can, however, support up to at least Chrome's weight, as seen when he managed to keep him held up by his spear, albeit with great difficulty. He manages to defeat Agro, though received heavy injuries in the process.

He survived a fatal wound from Ibara, though it was thanks to Kohaku that he survived as they were petrified not long after.


Ginro wields a primitive-looking spear. It used to be coated silver but it was destroyed during the search for sulfur. You showing to be very skilled with using it as he was able to perform at spearmint’s dance wear disguised as a female.

During a raid by Hyoga, Ginro gained a katana that was created by Kaseki and Senku.


Ginro was at some point born into Ishigami Village and took up the role of a guard with his brother Kinro.


Kingdom of Science Arc

Ginro is first introduced alongside Kinro, blocking Kohaku and Senku from entry into the village due to their policy on outsiders. Senku, unamused by this, blows bubbles with a bar of soap, causing the two of them to freak out until Chrome explains what's going on.

Ginro assists Senku in his quest to make Ruri antibiotics, helping create electricity, and overcoming his cowardice to help Senku and Chrome collect sulfuric acid. He saves Chrome from falling into the acid.

Village Games Arc

He was in on the plan for the village tournament, until the idea of becoming chief entered his head. He compromised the plan and fought Senku intending to win, but was thankfully knocked out by Senku.

Vs. Hyoga Arc

He is present when Hyoga invades and watches him, wound his brother. Despite Kinro's wish for him to cut the bridge, Ginro refuses to carry out the wish to save his brother. Fortunately, Senku's tactics cause Hyoga to retreat, saving Kinro and the village.

When Hyoga invades again, Ginro is equipped with a katana to help defend Ishigami Village. In spite of holding the enemy back, the village is burned down by Homura.

Communications Arc

He is very happy with the creation of cotton candy and the water wheel, praising the age of energy. Once Senku's group return from the cave, they wish Senku a happy birthday. Ginro later hears the recording left by Byakuya for Senku containing a message from him. He is amazed by the event, especially a song preformed by him and the crew.

After the battle, he witnesses Tsukasa's sister being depetrified, while amazed to see a statue freed for the first time.

Age of Exploration Arc

Treasure Island Arc

He is one of the only members of the crew to not be petrified, due to being underwater at the time and swimming out of range after Ukyo's arrow hit the weapon. Ginro made it back on board the ship and hid in a barrel.

He overheard Kohaku's shouting for the lab and was downcasted at the work he'd have to do while avoid getting caught. Peeking out the barrel, he spotted Senku's group, while begging for help. They were annoyed he survived the attack but wanted him to help

While he initally wanted to escape, his brother's statue motivated him to help Suika (who also survived). Due to him causing a distraction, they manage to get the mobile lab and reunite with Senku and the others.

He is sent undercover as a woman to infiltrate Ibara's forces, and was impaled after learning Ibara really usurped the original ruler who was petrified. He is saved by Kohaku but tells her of what he discovered before he could die. Kohaku nearly reveals the truth to the island about the Head but Ginro realized this was a ruse to get them petrified to save his life. The pair then put their bets on Senku to win.

After Ibara was defeated, Ginro is revived and his wound healed from the formula. Kinro praises his efforts, to his joy. He thanks Kohaku and tries to hug her in a perverse way but he is of course punched by her but she does accept his gratitude.

He is shocked by the training of Kohaku and Kirisame, trying to run away but is chased by them though is saved by a new follower Matsukaze who is very skilled. According to Matsukaze, Ginro resembles his former lord and Ginro thinks its a distant relative of his.

With Matsukaze by his side, Ginro is pleased that now his torturers can't come after him.

New America City Arc

After returning to the Kingdom of Science, he witnesses the revival of Tsukasa Shishio. Ginro then excitedly introduces Matsukaze and touts on skill, he watched Matsukaze challenge Tsukasa to a sparring match but is easily bested by his opponent and sees Matsukaze surrender. Ginro's cockiness drops at seeing how outclassed his bodyguard is to Tsukasa.[3]

Ginro mentioned that he tried to sneak away but Matsukaze carried him back onboard the Perseus along with the supplies.

In the voyage, Ginro is bored by the traveling and notes how he wants to go back. When Senku and Ryusui recreate poker, Ginro is happy Senku won because he bet on him.[4]

During the party after the poker game, a drunk Ginro asks Matsukaze to tell the story of his lord and of the Petrification Weapon got to Treasure Island. While Matsukaze explained, Ginro was shocked how his master died, and how he ultimately came to be petrified.[5] When Hyoga, Mozu, and Homura are revived, Ginro sneaks away as they joined Matsukaze and Tsukasa in weapons training. He asks his brother to train him instead and the latter obliges.[6]


  • Ginro's name can be translated as "silver wolf". This ties into his brother, Kinro's name, which means "golden wolf".
  • His name contains the kanji for Silver ( Gin) and Wolf ( ) and put together mean Silver Wolf, in keeping with the fact that all other members of Ishigami village have names referencing metals and crystals. His being the reference to the chemical element Silver, its elemental symbol is Ag and atomic number is 47.


  1. 1.0 1.1 Dr. Stone Manga; Volume 4, Q&A Section
  2. Dr. Stone Manga — Chapter 121, Ginro is Petrified along with Kohaku.
  3. Dr. Stone Manga: Chapter 141
  4. Dr. Stone Manga: Chapter 143
  5. Dr. Stone Manga: Chapter 146, Pages 5 - 13
  6. Dr. Stone Manga: Chapter 146, Pages 14 - 19

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