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The top three among them are even more powerful, which means the fight against them will be just as interesting. Demon Slayer is technically a battle Shonen, but no other arc in the series focuses this heavily on the battle other than the Infinity Castle. We get to see some thrilling moments along with the heartbreaking losses the Demon Slayer Corps has to suffer. Interestingly enough, a lot of the match-ups were driven by personal motives, which made them all the more intriguing.
Warning: This article contains spoilers from the Demon Slayer manga!
1) Shinobu Kocho vs. Doma

In terms of brute strength, Shinobu falls behind even a low-ranking Demon Slayer. However, she still rose to the ranks of the Hashira thanks to a special poison she created that kills demons in an instant. Shinobu’s sword is laced with poison made from wisteria, and she injects it into demons during battle. She makes up for her lack of strength with her speed, which even demons have a hard time keeping up with. However, Doma isn’t just any ordinary demon; he’s the Upper Moon Two, one of the strongest demons in history.
Shinobu has a grudge to settle with the demon, which is why the match-up makes perfect sense. She knew defeating an Upper Moon Two was almost an impossible task, which is why she spent a long time coming up with a strategy, which, unfortunately, required her sacrifice. She had been poisoning herself for about a year, which would severely weaken any demon that consumed her. Knowing Doma’s habit of eating any woman he sees, she knew he wouldn’t let go of an opportunity to eat a female Hashira. Shinobu entrusted her sister Kanao to strike the final blow to the demon after her death.
2) Zenitsu Agatsuma vs. Kaigaku

If you’re surprised by Zenitsu’s cold glare in the Infinity Castle trailer, then rest assured, his fight against Kaigaku will be even more bone-chilling. During the final stage of the Hashira Training, Zenitsu learns that his master, the former Thunder Hashira, committed Seppuku, a form of ritual suicide, after his student Kaigaku willingly turned into a demon. He even immediately became an Upper Moon Six to fill in the vacancy before the final showdown. Zenitsu abandons all hesitation after losing the only person he cares about.
What’s worse is that Kaigaku, despite having his memories as a human, never once regretted his actions. Zenistu and Kaigaku were learning the breathing style under the same master, but never got along well because of Kaigaku. He always mocked Zenitsu, who was only able to learn the first form, the most difficult form that even Kaigaku couldn’t master. The fight between them is brief, but it ends on a surprising note when Zenitsu decapitates the demon with a single strike using a seventh form he created all by himself.
3) Tanjiro Kamado and Giyu Tomioka vs. Akaza

The unfortunate death of Rengoku, the Flame Hashira, deeply impacted Tanjiro, who both admired the man’s bravery and was heartbroken to witness his demise. At the time, Akaza deemed Tanjiro unworthy of his attention and paid him no mind. On the other hand, even with his fatal injuries, Rengoku almost kept Akaza out in the open before sunrise, but the demon made a run for it at the last minute. Tanjiro, who was accompanied by Giyu, stumbles upon Akaza again in the Infinity Castle.
This team-up between Giyu and Tanjiro was a lot different from the Mount Natagumo arc since the two are now fighting on an equal level. This highlights Tanjiro’s phenomenal growth in a short span since he can finally stand toe-to-toe with a Hashira. However, even their combined efforts were barely enough for the Upper Moon Three. Both Demon Slayers push themselves past their limits and unlock the abilities they never knew they had. The story also highlights Akaza’s heartwrenching backstory and his emotional, yet tranquil farewell.
4) Kanao Tsuyuri and Inosuke Hashibira vs Doma

After witnessing Shinobu’s death, Kanao wastes no time in challenging the Upper Moon Two. For Doma, who effortlessly consumed a Hashira, dealing with Kanao should’ve been an easy task. However, he never would’ve guessed that Shinobu would come up with an insane plan of poisoning herself. Because she only injected herself with poison that harms demons, Doma’s body weakens until it begins to affect his powers. Despite that, Kanao is still having a hard time against the demon. However, Shinobu knew what her sister was capable of, and that’s why she burdened Kanao with such a task.
It wasn’t long before Inosuke also arrived at the scene and lent her a hand. Kanao not only has to defeat the demon for the sake of the Corps, but she must avenge her sisters as well. In Inosuke’s case, he also learns about the death of his mother at Doma’s hands. Inosuke regains his memories as an infant, including the short time he spent with his mother as well as what caused their separation. Both young Demon Slayers pushed themselves to the extreme and finally finished what Shinobu started. It wasn’t long before Doma disintegrated into nothing.












