Demon Slayer: Kimetsu no Yaiba Hashira Training Arc Episode 8 Review

Demon Slayer: Kimetsu no Yaiba Hashira Training Arc Episode 8 Review

Ubuyashiki’s Trap

Demon Slayer: Kimetsu no Yaiba Hashira Training Arc Episode 8 was a very good end to the season. Was it better than Episode 7, though? I’m not sure. It was definitely cooler. However, I still liked Gyoumei’s backstory a lot.

I’ll say these two episodes are equal. They’re both good but for different reasons. So let’s get into the first reason why Episode 8 was good: Kagaya Ubayashiki’s trap. Kagaya sacrificed himself, his wife, and two of his children to wound Muzan Kibutsuji. Yeah, not even to kill Muzan.

At first, I thought the explosion that blew up the Ubuyashiki mansion was Muzan’s ability. However, it quickly became clear that this was not the case. Kagaya loaded his mansion up with a lot of explosives and intentionally set them off right before Muzan killed him.

Muzan Kibutsuji falling for Kagaya Ubuyashiki's trap from the anime series Demon Slayer: Kimetsu no Yaiba Hashira Training Arc Episode 8
Muzan Kibutsuji falling for Kagaya Ubuyashiki’s trap

Why would he do this? Obviously, for Kagaya it doesn’t matter. He was going to die either by Muzan’s hand or due to his illness. And, in fact, we learned that his illness is a curse that kills members of the Ubuyashiki family when they reach 30 years old. So, Kagaya decided to go out with a bang.

He knew this blast wouldn’t kill Muzan. But he also knew it would do enough damage that Muzan would need at least a few minutes to recover. And Kagaya’s plan was for that to be enough time for the Hashira to arrive. Then, they could team up to kill the weakened Muzan.

What about Kagaya’s family? Amanee clearly decided to go out with her husband. And I guess two of their daughters did, too. Muzan noted that those four were the only people in the mansion. That’s important because it means Kagaya and Amane’s three other children survived.

Tamayo’s Research

We never got an episode showing Shinobu and Tamayo working together on their research. But it looks like their off-screen research was a success. After the blast at the Ubuyashiki mansion, Tamayo shows up to weaken Muzan even further. If what she says is true, she implanted a drug in Muzan’s body.

This drug is a cure for demonism(?). It turns demons back into humans, apparently. That’s kind of a huge deal if true. However, I’m not convinced that Tamayo was telling the truth here. There are a few things that don’t make sense, such as this drug seeming to have no effect on Muzan.

Also, if Tamayo and Shinobu developed this drug, surely they’d be using it against other demons, right? Like, wouldn’t Tamayo have used it on herself and Yushiro if it worked? And what about Nezuko? We can’t be sure she didn’t use it on Yushiro or Nezuko. But it seems unlikely.

Tamayo fighting Muzan Kibutsuji from the anime series Demon Slayer: Kimetsu no Yaiba Hashira Training Arc Episode 8
Tamayo fighting Muzan Kibutsuji

Okay, but what’s an explanation for why Tamayo would use it on Muzan first? The best explanation I can think of is that she didn’t want the secret to get out. I have a feeling that Muzan can sense when his “children” die.

If this is true, he might notice that some demons are dying under mysterious circumstances. Or he might even be able to tell that they didn’t die but were cured. And if Muzan learns that the demon slayers can cure demons, he’s going to be far more wary.

The best way to take Muzan by surprise would be to use the cure on him first. Also, Tamayo couldn’t use the cure on herself because she needed to be a demon while fighting Muzan. She wouldn’t have stood a chance. Now, we wait for the cure to work.

The Hashira Assemble

Since Tamayo was the first one on the scene after the blast, she must have been pretty close by. After her, Gyoumei was the first Hashira to arrive. And then the rest of the Hashira arrived about 30 to 60 seconds after him.

It makes sense that Tamayo and Gyoumei were the first to show up, though. Unlike the others, they knew this was going to happen. Well, I guess if Tamayo knew, then Shinobu should have known as well, right? Anyway, Tamayo and Gyoumei were necessary for Kagaya’s plan to work.

Interestingly, Gyoumei was the only Hashira Kagaya told about his plan because he was the only one who would allow it. Kagaya knew that the other Hashira would protest against him being the bait. But I guess Gyoumei has no issue with that, which seems weird. I would have thought he’d be against it.

Gyoumei Himejima facing Muzan Kibutsuji from the anime series Demon Slayer: Kimetsu no Yaiba Hashira Training Arc Episode 8
Gyoumei Himejima facing Muzan Kibutsuji

I suppose Gyoumei understood Kagaya’s decision because he made the same decision in the past. Gyoumei attempted to save the orphan children by using himself as a shield. So, to him, Kagaya’s doing the same thing — using himself to give his “children” (the Hashira) a shot at taking down Muzan.

Still, I would have thought Obanai or Sanemi would be more likely to use Kagaya as bait. Those two seem willing to sacrifice anyone as long as it meant taking down Muzan. It’s weird to see them care about Kagaya.

Anyway, before the Hashira can kill Muzan, they’re all transported into the Infinity Castle. And it’s not only the Hashira and Muzan. It looks like the entire Demon Slayer Corps was transported there. How did Muzan do that? Well, he didn’t. It was Nakime, the biwa-playing demon from Episode 6, who tracked down all the demon slayers.

Final Thoughts

What do you think of the final episode of Demon Slayer: Kimetsu no Yaiba Hashira Training Arc? Did you also initially think the explosion at the Ubuyashiki mansion was Muzan’s ability? Do you believe Tamayo when she says she developed a cure for demons? And were you surprised that Gyoumei was the only Hashira who’d let Kagaya sacrifice himself?

If you enjoyed this review, remember to share it with everyone you know. Also, follow me on your social media of choice so you don’t miss out on any future articles — links are in the footer.

Finally, I’d like to thank Roman and JasonHK for supporting at the Heika tier this month. To learn more about the perks of supporting this blog, check out

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