So strong it's tragic... What Kokushibo Yoriichi's famous quotes teach about true strength

Music writer / guitarist / Certified web writing practitionerHoshino Takashi
Drawing on over 30 years of experience with guitars and bands since my high school days, I specialize in music-related articles and have handled many feature pieces to date. While my tastes lean toward genres like hard rock and heavy metal since I first picked up the guitar, I make a point of listening to a wide range of styles, both Japanese and Western, on a daily basis. I began working as a freelance writer in 2018. I hold a Web Writing Practical Certification, and in addition to writing, I’m also studying video editing. In my private life, I’m raising an elementary school child and stay active while supporting their extracurriculars, such as parkour and dance.

Among the characters in Demon Slayer: Kimetsu no Yaiba, Yoriichi Tsugikuni stands out with exceptional popularity.

His words—born from overwhelming strength paired with profound compassion—resonate deeply with readers.

Many of his sayings question how we should live as humans and what it means to be alive, offering fresh insights even for those of us in the modern world.

In this feature, we introduce the unforgettable quotes engraved in Yoriichi Tsugikuni’s heart.

You’re sure to find words that will guide your life’s path.

Too strong it’s sad… What Kokushibo Yoriichi’s quotes teach about true strength (11–20)

The man had seven hearts and five brains. In that moment, the form of my sword technique was perfected.Yoriichi Tsugikuni 'Demon Slayer'

Kokushibo Yoriichi’s famous quote upon learning of Muzan Kibutsuji, the progenitor demon’s abilities: “The man had seven hearts and five brains.

In that instant, my sword forms were perfected.” Faced with Muzan’s extraordinary regenerative power, this line expresses that Yoriichi had arrived at the answer—what kind of sword technique would reliably put him down.

Although Muzan ultimately escaped, it’s a quote that showcases Yoriichi’s overwhelming swordsmanship.

It also inspires the sense that, had they fought again, he surely would have defeated him.

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Hoshino Takashi

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In conclusion

In the words of Yoriichi Tsugikuni, the fundamental strength and kindness of humanity coexist.

His many sayings transcend time, resonate in our hearts, and serve as a guide when we come to a standstill.

When faced with hardship, remembering these words will surely give you the courage to take a new step forward.