That Time I Got Reincarnated as a Slime is also very popular as an anime. It has been decided that it will be broadcast for two seasons, which shows how high the expectations are. In this article, we will introduce Kaijin, a blacksmith who was one of the dwarven craftsmen who were essential to Rimuru's construction of his city in That Time I Got Reincarnated as a Slime.

First appearance in [That Time I Got Reincarnated as a Slime]! Kaijin, a blacksmith in the Kingdom of Dwargon

Kaijin's first appearance
Source: That Time I Got Reincarnated as a Slime ©Taiki Kawakami, Fuse, Kodansha / TenSura Production Committee
Rimuru had successfully named the goblins and Garo tribe, and was rebuilding the dilapidated village. However, goblins are not very knowledgeable about architecture, and even after rebuilding, it was by no means a great job. So, in search of connections with engineers, the goblins visit the armed nation of Dwargon, with whom they had previously traded.

Armed Nation of Dwargon

King Bester
Source: That Time I Got Reincarnated as a Slime © Taiki Kawakami, Fuse, Kodansha / TenSura Production Committee
The armed nation of Dwargon is the nation ruled by the dwarf king, Gazelle Dwargon, and is the first country to have peace and diplomatic relations with Tempest since then. King Gazelle learned swordsmanship from Hakurou 300 years ago and is Rimuru's senior apprentice. In addition to teaching Rimuru the pride of being a king, he has come to basically trust everything Rimuru says, and the friendship between the nations feels genuine.

【That Time I Got Reincarnated as a Slime】The reason why Kaijin became useful to Rimuru

Conflict with Bester

Kaijin punching Bester
Source: That Time I Got Reincarnated as a Slime © Taiki Kawakami, Fuse, Kodansha / TenSura Production Committee
When Rimuru first met Kaijin, Kaijin was at a loss as he had accepted unreasonable orders due to Bester's harassment. Kaijin was originally the head of the royal palace's engineering unit and Bester was his adjutant. Bester, a duke, did not like Kaijin, who was a commoner, and one day, in a hurry to achieve success, Bester carried out the Magical Weapon Plan on his own, which failed spectacularly. However, he blamed Kaijin for the failure and Kaijin was able to leave the royal palace. Bester, who was loyal to King Gazelle, seemed to be jealous of Kaijin. So this unreasonable order was also a form of harassment. However, Rimuru solved the problem. Here, Kaijin calls Rimuru his benefactor, but he still felt loyal to King Gazelle and did not have the choice to change his country.

The trial and the will to serve Rimuru

The monster who got a master
Source: That Time I Got Reincarnated as a Slime © Taiki Kawakami, Fuse, Kodansha / TenSura Production Committee
With the problem over, Kaijin and the others came to drink with Rimuru. However, when Bester came there, he saw Rimuru and splashed water on him, telling him to get out. Kaijin got angry and punched Bester. As a result, Kaijin, who had raised his hand against a country's minister, is put on trial. King Gazelle, who is attending the trial, asks Kaijin if he would like to return to the royal palace. Bester is taken by surprise, but Kaijin refuses, saying he has already found his master. It seems he had made up his mind when he punched Bester. As a result, he is ordered to leave the country, and so he comes with Rimuru.

【That Time I Got Reincarnated as a Slime】Kaijin and his brothers who served Rimuru

Garm
Source: That Time I Got Reincarnated as a Slime ©Taiki Kawakami, Fuse, Kodansha/Tensura Production Committee
There were also dwarves who came with Kaijin, who decided to serve Rimuru. Kaijin was originally a palace attendant, but they left the palace with him when he was chased out of the palace. The eldest of the three brothers, Garm, is a skilled armorer. He's a bit of a naughty old man. The second son, Dold, is the best craftsman among the dwarves. He is the one whose arm was nearly torn off thanks to Rimuru's healing potion. And the taciturn third son, Mild, is also well versed in architecture and art. With the arrival of these four, the city of Rimuru has made great strides.

【That Time I Got Reincarnated as a Slime】Kaijin was actually a famous person

Famous Kaijin
Source: That Time I Got Reincarnated as a Slime ©Taiki Kawakami, Fuse, Kodansha / TenSura Production Committee
Adventurers Guido, Ellen, and Kabal came to the city with Shizu. When they arrived, the city had changed dramatically. This is also thanks to the dwarves. However, in order to stop Ifrit, who had assimilated with Shizu, from going on a rampage, Rimuru devours Ifrit. Shizu dies inside Rimuru. After telling this to Guido and the others, Gil and the others return to the guild to report. As their equipment was in tatters, they give them Kaijin's prototype equipment as a parting gift. They are overjoyed, and when Kaijin and Garm are introduced to them, they excitedly say, Kaijin is a legendary blacksmith, and Garm is that Garm master! They must be quite famous, with their names known in other countries.

[That Time I Got Reincarnated as a Slime] It's not just blacksmithing!? Kaijin is surprisingly knowledgeable about the world

Kaijin in Depth
Source: That Time I Got Reincarnated as a Slime ©Taiki Kawakami, Fuse, Kodansha/Tenseura Production Committee
Kaijin was originally a royal servant in Dwargon, so he is surprisingly knowledgeable about the world. He seems to know a lot about the state of affairs of the Demon King. Kaijin made amends with Bester, who came to Tempest later, and seemed to be trusted by the people, so it's possible that he had been receiving various news from his time at the royal palace. Also, since dwarves are a long-lived species, it could be that experience is the result of years of experience. Either way, Kaijin is well-informed about the state of the world, despite his stubborn appearance.

【That Time I Got Reincarnated as a Slime】Kaijin Introduction Summary

Scary Kaijin
Source: That Time I Got Reincarnated as a Slime ©Taiki Kawakami, Fuse, Kodansha/Tenseura Production Committee

What did you think? Kaijin usually does side jobs, so he doesn't play an active role in the battle scenes, but he does make weapons for the characters. Gobuta also uses them. It seems that Kaijin will become even busier as the country grows in the future. However, he doesn't seem to dislike his job, so he may be enjoying life in his own way.

 

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Original Novel

Novel - Cover of That Time I Got Reincarnated as a Slime
[Novel] That Time I Got Reincarnated as a Slime 1 (GC Novels)

Manga version

manga-reincarnated-as-slim-cover
【Manga】Reincarnated as a Slime (1) (Sirius Comics)
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