Zenitsu Agatsuma’s famous quote: Words that resonate in the heart, becoming stronger while accepting one’s weakness.

Deputy Editor of RAG MUSICsasashina
Deputy Editor of RAG MUSIC. JFC-certified fact-checker. I’m Sasashina, a mom currently raising an elementary schooler and a preschooler. During my student years at Kyoto College of Science and Technology, I studied a wide range of fields including sound, lighting, and video technology, building a foundation in comprehensive stage production and creative expression. After graduation, I joined a music production company, where I still work, consistently building experience in production and engaging in a variety of music-centered tasks. Currently, I mainly handle articles for children, drawing on what I’ve learned about parenting and what I feel and discover through daily interactions with my kids. I hope my work can be of help to you, even in a small way!

Zenitsu Agatsuma, a character from the hugely popular series Demon Slayer: Kimetsu no Yaiba.

When he’s feeling energetic, he keeps saying pitiful things, but in battle scenes he transforms and shows a cool side—his unique personality captivates many fans.

Though usually timid, his words brim with a quiet inner strength that surfaces when it truly matters, striking a chord in our hearts.

In this article, we’ve carefully selected Zenitsu Agatsuma’s most moving quotes from both the original manga and the anime.

Zenitsu Agatsuma’s famous quotes: Words that resonate with a heart that grows stronger while accepting its weaknesses (11–20)

I’m the one who likes myself the least.

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At Mount Natagumo, where Lower Rank Five, Rui, lives, Zenitsu ends up fighting the Elder Brother Spider.

However, on his way there he was stung by a spider and poisoned, and when this is pointed out to him, he panics.

He runs away from the spider and ultimately flees up a tree in tears.

While being laughed at by the Elder Brother Spider, Zenitsu says he hates how weak he is and wants to become a decent human being.

It’s the first time he speaks honestly about his true feelings in this line.

And just when it seems like he’ll rally himself and fight… he faints.

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Tanjiro… I… protected it… because you said… this is something… more important than life…

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Many people were probably moved by this scene.

After defeating the former Lower Moon demon in the Drum House, Tanjiro steps outside.

There he sees Zenitsu, beaten to a pulp after being kicked by their fellow Demon Slayer, Inosuke.

Noticing that Tanjiro has come out, Zenitsu says this line.

Zenitsu has keen hearing and can distinguish humans from demons by the differences in sound.

So he knew from the start that Tanjiro was traveling with a demon.

However, because Tanjiro had said that the box containing Nezuko was ‘more precious than life,’ Zenitsu put his body on the line to protect it from Inosuke, who had realized Nezuko was inside and tried to cut her down.

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I absolutely have to be the one to do this.

These words express Zenitsu’s resolve and tie into the episode of Demon Slayer: Kimetsu no Yaiba – The Movie: Infinity Castle Arc, Chapter 1: Akaza’s Return.

At the time, Zenitsu was training with Tanjiro under the Hashira Gyomei Himejima.

Then a letter arrived.

It likely contained news of their master Kuwajima’s death.

Because one of his disciples had become a demon, Kuwajima took responsibility and committed seppuku.

Tanjiro worried about the downcast Zenitsu, but Zenitsu spoke this line and quietly reflected on what he had to do.

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Even if it hurts or is painful, don’t run away to the easier path.

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Once you get hooked on an anime, you just can’t stop, right?#DemonSlayer Please look at me with kind, understanding eyes.clumsy #RecommendedWantToRide Cutting corners #Zenitsu
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While fighting the spiders on Mount Natagumo, Zenitsu is injected with poison and his body grows weaker until he can no longer move.

In that moment, he recalls the words his master—Grandpa—gave him and murmurs, “If I give up, Grandpa will smack me,” as he uses his breathing to try to slow the spread of the poison even a little.

During this battle, Zenitsu remembers many events from his training days.

Seeing this, you can understand Zenitsu’s feelings and what he carries inside.

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Apologize to the child you hurt by pulling their ear.

These are Zenitsu’s words to Daki, Upper Rank Six, in the Entertainment District Arc of the anime Demon Slayer: Kimetsu no Yaiba.

Daki is a demon but also lives under the guise of a courtesan.

To find his missing comrades, Zenitsu infiltrates Daki’s house, where he witnesses her bullying a little girl.

This line is him ordering Daki to apologize to the girl.

The child was injured so badly that blood was coming from her ears, all because she hadn’t cleaned the room.

Although Zenitsu is speaking while asleep here, he also stands up to Daki when awake, making this a memorable quote that overturns his cowardly image in a positive way.

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In conclusion

Zenitsu Agatsuma’s famous lines are filled with courage, resolve, and kindness. Even when he feels timid, his care for his friends makes him strong, and his words resonate with moving power. By encountering Zenitsu’s words, the small courage within you will surely grow larger.