Kozo Kanamori

Kozo Kanamori is a swordsmith affiliated with the Demon Slayer Corps.

Appearance
Kozo is a man of average height and build with chin-length black hair that spikes near the ends. His hands are covered in visible blisters and he wears a Hyottoko mask over his face.

Kozo is usually seen wearing a long, pale robe with a black haori.

Personality
Kozo appears as a gentle, soft-spoken individual. He is capable of understanding the hot-blooded Hotaru Haganezuka and cares for others very much as seen when he continues to protect Hotaru against an attack from Upper Rank 5, Gyokko, despite being critically injured.

However, when it comes to his swords, Kozo is very passionate. When Inosuke Hashibira purposefully chips the dual blades he received from him, the swordsmith is furious and berates him.

Rehabilitation Training Arc
During the Rehabilitation Training Arc Kozo and Haganezuka arrive and gave the 2 swordsmen Tanjiro and Inosuke they're newly forged swords, After Inosuke hammers his swords with a rock He immediately flew in rage and calls Inosuke a "Dead Man" while Tanjiro repeatedly apoligizes, After that they left with him complaining on how it makes no sense to why Inosuke chipped his blades

Hotaru Haganezuka
Kanamori and Haganezuma are shown to have a positive relationship and are also very good friends. Both are blacksmiths and know how to build swords and also Kanamori understands Haganezuka's personality and hot blood due to being stressed by someone breaking his swords.

Tanjiro Kamado
When Kanamori first meets Tanjiro, he develops a bit of a friendship with the young Kamado, and also explains how he comes to understand Haganezuka's hot blood.

Inosuke Hashibira
When Inosuke broke the swords that Kanamori had given him, the blacksmith was extremely furious and very stressed to see that, to the point of needing to be held so as not to hurt Inosuke and so he didn't like Inosuke because of that and they didn't become friends.

Muichiro Tokito
Muichiro took his sword that had its blade already breaking for Kanamori to fix it, in addition they get along very well and have a positive relationship, this is also shown in the fight against Gyokko in which Muichiro protected Kanamori and vice versa.

Trivia

 * Kozo's wife is called En, and she's two years younger than him. The two of them are said to be such a perfect couple that they even look like each other.

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