Summary

  • Ozaki died due to being too underpowered and lacking mental strength for demon slaying.
  • Murata lacked natural talent but continued fighting despite weaknesses.
  • Aoi Kanzaki detested combat and should not have joined the demon slayers.

Demon Slayer: Kimetsu No Yaiba is an exciting series that follows brave combatants known as demon slayers as they fight Demon King Muzan and his subordinates. To join the Demon Slayer Corps, every candidate must do the required physical conditioning before trying Final Selection, a rigorous selection process that pushes applicants to their limits.

While Final Selection is quite tough, a lot of demon slayers join the Demon Slayer Corps for the wrong reason or the wrong attitude. Here are some of those characters who should never have become a demon slayer.

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6 Ozaki

Low-Ranked Demon Slayer Who Died a Horrific Death

  • Manga Debut: Chapter 30
  • Anime Debut: Episode 16

Ozaki was a selfless and kind demon slayer who was selected to fight demons on Mount Natagumo along with her squad. But she had the misfortune of being turned into a puppet by the mother of the spider family. She was too weak to free herself and was used to attack anyone who came close to her.

Bring someone with a higher rank! If you don't, I'll kill them all! Please!

Ozaki ended up dying moments after meeting Inosuke and Tanjiro. She was clearly too underpowered and probably did not have the mental strength to deal with psychologically exhausting situations that required quick thinking.

5 Murata

Just Not Made For Job

  • Manga Debut: Chapter 28
  • Anime Debut: Episode 15

Murata is an anxious and underpowered demon slayer who makes his debut in the Mount Natagumo arc. Although he is easily overwhelmed and has a fragile ego, he has shown that he can continue fighting even when his squad is wiped right in front of him.

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Murata joined the Demon Slayer Corps after the murder of his parents, as he had no family left. While he did manage to make it through the Final Selection, he did not really have the natural talent it takes to fight demons. Interestingly, he was in the same batch as Sabito and Giyu. Almost all the demons on the mountain that year were killed by Sabito, so many applicants like Murata never had to fight to earn their place in the Demon Slayer Corps.

4 Aoi Kanzaki

Can't Stand Combat

  • Manga Debut: Chapter 48
  • Anime Debut: Episode 23

Aoi Kanzaki is a former demon slayer who works at the Butterfly Mansion as a helper. She is a trained craftsman and also knows how to make medicines thanks to her training under Insect Hashira.

Compared to you guys, I'm not so important, so thanks aren't necessary. I survived selection due to pure luck. Since then I've been afraid to fight, so I'm a coward.

Interestingly, Kanzaki is a Water Breathing user who had passed the Final Selection sometime in the past. But due to her insecurity and fear of combat, she never served as a demon slayer. Kanzaki is more suited for other roles that she has embraced at the Butterfly Mansion and should have never even appeared for the Final Selection knowing that she detests combat.

3 Genya Shinazugawa

Can't Use Breathing Style

  • Manga Debut: Chapter 6
  • Anime Debut: Episode 6

Genya Shinazugawa is the only demon slayer in the present generation who cannot use a breathing style. In order to compensate for this, he uses the repetitive action technique invented by Gyomei Himejima along with demon consumption. While the former is an innovative strategy, the latter is an outright bizarre ability as Genya consumes demon flesh to temporarily gain demonic characteristics.

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Interestingly, his older brother Sanemi always wanted his brother to start a family of his own and not get involved with the Demon Slayer Corps. His fears were understandable since Genya was severely handicapped to fight demons because of his inability to use breathing styles. As great as the demon consumption worked out for him, he could have saved his brother from lifelong trauma had he listened to him.

2 Zenitsu

Hates Being a Demon Slayer

  • Manga Debut: Chapter 6
  • Anime Debut: Episode 4

Zenitsu Agatsuma always hated hard work and was particularly afraid of pushing himself to his limits. But he had the fortune of learning directly from Jigoro Kuwajima, the former Thunder Hashira, who never gave up on him. If it wasn't for him, it is highly unlikely that Zenitsu would have ever joined the Demon Slayer Corps, as he almost gave up the cruel training for Final Selection on several occasions.

I hate myself more than anyone. I always think I have to get my act together, but I end up cowering, running away, sniveling. I want to change. I want to be a competent person.

Even after becoming a demon slayer, Agatsuma struggled to fit in and always hated every training session, unlike his peers. His endless nagging and whiny attitude made him appear unfit for the dangerous career he had assigned himself. While it's true that Zenitsu is incredibly effective after he falls asleep, it is hard to ignore the fact that he complains endlessly about every mission he has been on and appears to hate every aspect of being a demon slayer.

1 Kaigaku

Should Have Never Been Taught Thunder Breathing

  • Manga Debut: Chapter 34
  • Anime Debut: Episode 17

Kaigaku had the misfortune of losing his parents at a young age. Left to fend for herself, he ended up resorting to petty crimes to fill his stomach and survive. These experiences ended up molding his personality negatively, and even though he received love later, it failed to reshape his character.

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Muzan Kibutsuji was nearly unrivaled in Demon Slayer—until one warrior pushed him to the brink like no other before or after.

Kaigaku's selfishness and intense self-preservation influenced most of his life decisions, so someone like him should never have had the blessing of learning Thunder breathing under a former Hashira. Instead of helping him become a better person, his newfound abilities not only corrupted him more but also became a serious threat to society after he decided to accept Kokushibo's twisted offer.

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Demon Slayer
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Release Date
April 6, 2019
Network
Adult Swim
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Studio
ufotable
Creator
Koyoharu Gotoge
Streaming Service(s)
Crunchyroll, Hulu, Netflix
MyAnimeList Score
8.26 (Hashira Training Arc)