Demon Slayer: A Deadly Curse Awaits One Hashira in Infinity Castle

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This article contains major spoilers from the Demon Slayer manga.

In the world of Demon Slayer, I’ve witnessed some gruesome and impactful deaths that leave quite an impression. As we delve into the Infinity Castle arc, it seems the death toll might escalate even further. Whether they are powerful Upper Moons or esteemed Hashiras, no one appears to be immune in the climactic battle between the forces of righteousness and darkness in Demon Slayer.

In the Infinity Castle, where demon slayers engage in fierce battles, it’s the main trio and the Hashira who seem to be at the brink of death most often. They are up against upper moon demons, known for their colossal strength and extraordinary healing abilities. Moreover, a lethal curse looms over them, ready to strike once they push beyond their limits. It’s not necessarily a demon attack that could kill them, but rather this curse that threatens to take their invaluable lives.

The Demon Slayer Mark Is Both a Curse and a Power-Up

The Price of the Demon Slayer Mark

  • The demon slayer mark is a massive power-up with fatal side effects.

Observing closely, I’ve noticed that activating the Demon Slayer Mark is a significant achievement for any swordsman. It’s not just anyone who can casually awaken this mark; only a select few with exceptional talent and abilities possess the power. Among them, aside from Tanjiro Kamado, there are individuals like Mitsuri Kanroji and Muichiro Tokito who have successfully activated it. However, I believe more Hashira should be granted access to this power within the Infinity Castle.

When a slayer of demons triggers the elusive symbol, they experience a significant surge in their power, agility, and durability for a limited time. This empowerment allows them to engage equally with formidable demons, giving the impression that it raises their likelihood of success. Its efficiency has been demonstrated not only in Tanjiro Kamado’s past battles against Gyutaro and Hantengu, but also in Muichiro and Mitsuri’s encounters within the Swordsmith Village.

As an eager explorer, I yearn for treading the unbeaten path, yet I can’t shake off the uncertainty of what awaits me around each bend.

Regrettably, possessing a potent ability like the Demon Slayer Mark carries a grave penalty. Essentially, it’s a situation where one could reap significant rewards but also faces great peril. Those who wield this active Demon Slayer Mark are destined for a sorrowful end that they can’t escape unless they renounce their humanity. The mark of the Demon Slayer guarantees death, regardless of the strength it bestows upon its bearer.

The Curse That Kills the Stone Hashira

The Stone Hashira Activates the Mark, Knowing Death Awaits

  • The Stone Hashira can activate the demon slayer mark at will.
  • The Stone Hashira will die from the fatal effects of the mark at the age of 27.

Known as the strongest Hashira of his generation, despite his blindness, Gyomei Himejima is widely respected for his extraordinary strength. This assessment is shared by his fellow Hashira, who believe that Gyomei’s power places him at the pinnacle of the ranks, a force to be reckoned with, even surpassing some of the most powerful upper moon demons in Demon Slayer. It comes as no surprise that he was granted the demon slayer mark prior to the events of Infinity Castle.

Fans have seen just how terrifying Gyomei can be during battles, and it’s even more chilling when they witness him charging with his weapon, ultimately crushing Muzan Kibutsuji’s head at the end of the Hashira Training arc. However, when he voluntarily unleashes his demon slayer mark within the Infinity Castle, he becomes even more terrifying; his battle sequences could leave many fans trembling in fear, as they might find themselves reliving these haunting scenes in their dreams.

We are proud to live and die as human beings.—Gyomei

Regarding what was previously stated, when Gyomei Himejima employs the demon slayer mark, it’s not a blessing but rather a lethal curse that won’t spare him either. Since he is 27 years old and has activated the mark, his life expectancy has been predetermined due to the rule that those bearing the mark can’t surpass the age of 25. As dawn approaches, Gyomei understands that he doesn’t have much time left, as the curse will inevitably end his life, even after having fought both lower and upper demons throughout the night in Infinity Castle.

Two Demon Slayers Escaped the Mark’s Fatal Curse

The Curse Couldn’t Touch the Tsugikuni Brothers

Among demon slayers bearing a mark, most don’t survive past 25 years. However, manga enthusiasts are aware that there were two exceptions to this rule. The first was Yoriichi Tsugikuni, the legendary demon slayer and founder of all breathing styles, who was exceptionally powerful. The second was his elder brother, Michikatsu Tsugikuni, now recognized as Upper Moon One Kokushibo.

For over 80 years, Yoriichi thrived, whereas Michikatsu eluded death by transforming into a demon that can live for multiple centuries. The specifics of Yoriichi’s resilience against the curse remain vague, but some fans hypothesize it was due to his innate demon slayer mark which most swordsmen do not possess. Conversely, Michikatsu’s longevity is clear, as becoming a demon extended his lifespan significantly.

In the meantime, it’s unclear whether Tanjiro, Sanemi, and Giyu perished because of the curse like Gyomei. Many fans speculate that they lived out their days peacefully and happily, similar to how characters in Demon Slayer often do.

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2025-07-28 16:04