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That Time I Got Reincarnated as a Slime: Hakurou's 300x Beheading

ハクロウの朧流水斬（サイコロステーキ先輩）に対する日本のファンの反応

That Time I Got Reincarnated as a Slime
That Time I Got Reincarnated as a Slime: Hakurou's 300x Beheading
“They thought they were the ones toying with him... and only realized they were the ones being toyed with after their head had already hit the floor.”

舐めプしてると思っていたら、自分が舐めプされていた···と気が付いたのは、首を落とされた後という···

— @裕-z2c

A clip of Hakurou — the white-haired swordmaster of Tempest in That Time I Got Reincarnated as a Slime — calmly decapitating a trio of arrogant enemies blew up on a Japanese reaction channel (1.4M views), and the comment section turned into a masterclass on why "seeing fast" is not the same as "moving fast." The enemies carry a skill that lets them perceive the world at 300x speed and assume that makes them untouchable; the top Japanese comments patiently explain the trap — your eyes can run at 300x, but your body can't, so you watch your own decapitation arrive in slow motion and still can't dodge it. From there the thread becomes equal parts swordsmanship analysis (the "Oboro-ryu Water Slash" reads as a real water-style sword art) and pure schadenfreude at three smug characters getting humbled, before pivoting into a running gag — if Hakurou's strikes are that fast, then logically his villain monologue must also be playing back at 300x speed. It all lands on the one iron law of anime that these three forgot to obey.

This titleJapanese reactions to That Time I Got Reincarnated as a SlimeRead all 2 roundups on the title page
The official PV for That Time I Got Reincarnated as a Slime Season 4. The fan reactions below come from a separate Japanese clip of Hakurou's "Oboro-ryu Water Slash" against the 300x-perception enemies. （YouTube · isekai channel @バンダイナムコフィルムワークス (official)）

Japanese fan reactions (excerpted from 264)

  • I genuinely hated these guys, so watching them get wrecked is so cathartic.

    まじこいつら嫌いだったからやられて清々する

    — @クリーパーKK307 likes

  • No death in this show is more satisfying than the way these three go out.

    こいつらのやられ方ほどスカッとしたものは無い

    — @遊悟44 likes

  • 👺: "Your judgment is slow."

    👺「判断が遅い」

    — @なまもの-o3m293 likes

  • They're confusing two different things: the skill lets you perceive at 300x speed, but it does NOT give you a body that can move at 300x. And honestly, even with 300x perception, your brain still lagging behind on the fact that your head just got lopped off in an instant? Yeah, that's kind of unavoidable.

    300倍で認識できるだけで身体能力が300倍になってその動きができるわけじゃないことを勘違いしてる。 そして300倍の認識速度があるのに一瞬で首チョンパされたことに理解が追いつくのが遅れてもまぁ仕方ない。

    — @ひょうが-o2s708 likes

  • And on top of that, their perception itself was still too slow.

    認識も遅いという

    — @空音蒼そらねあお2 likes

  • "I can see it coming, but my reflexes can't keep up" is such a cool kind of doomed.

    見えるけど反応が追いつかないってかっこいい

    — @wkt_kong1 likes

  • It's the opposite of what they assumed. They thought their "Heavenly Eye" sped up their thinking so they were the ones moving faster and Hakurou couldn't keep up. But no — even perceiving at 300x, their actual physical body never caught up to it, so they were basically just flailing.

    逆だったんだよね「天眼」で思考加速して自分の方が速く動いている相手は着いてこれてない！じゃなくて そもそも300倍で知覚できても自分の身体能力がそれに伴ってないからただのザエルアポロしてるだけなんだよな

    — @Zak062Soppy0 likes

  • And the fact that old man Hakurou moves at a speed that matches their 300x perception anyway? Of course he does. Absolute legend.

    認識300倍に互する速度で動く白老さんがさすがすぎる

    — @石川祐輝-n6r2 likes

  • What do you expect from the reincarnation of a Water Hashira. (lol)

    さすが水柱の転生者

    — @pm-zn5vm18 likes

  • Oboro-ryu Water Slash → that's basically Water Breathing, Twelfth Form, isn't it...

    朧流水斬→水の呼吸、十ニの型か・・・

    — @agehanto10013 likes

  • I mean, it's literally just Water Breathing at this point.

    マジでただの水の呼吸

    — @silky85942 likes

  • A normal fighter would just let the severed head roll. But Hakurou spins it once, grabs it by the hair, and lectures the guy while looking him dead in the eyes — that little act of payback is just chef's kiss. There's a fitting send-off for scum, and scum gets the scum treatment.

    普通ならトばしたクビを転がしても良いのに一回転させて髪を掴んで相手の目を見ながら説教するハクロウの意趣返しがたまらん・・・ゲスにはゲスへの手向けと言うものがある

    — @浅野雅典-i7y15 likes

  • The way he firmly takes the severed head with him is a quiet reminder that yeah, he's still a monster at heart 😂

    しっかり生首持っていくとこは やっぱり魔物何やなって思う😂

    — @ヤマヤ-k6c1 likes

  • I love his voice way too much... so gravelly and cool!

    声が好きすぎる……渋いなぁ！

    — @てした-dues8 likes

  • Even as Hakurou, he's voiced by Houchu Otsuka, so the whole scene oozes Demon Slayer energy.

    ハクロウでも芳忠さんだから鬼滅感にあふれてる

    — @tackalive550 likes

  • Never thought I'd see the day Sakonji Urokodaki cuts a neck that doesn't belong to a demon... (same voice actor)

    鱗滝左近次が鬼以外の頸を斬る時が来るとは…

    — @マリァ0 likes

  • If you stop and consider that Hakurou is therefore ALSO talking at 300x speed, it gets a little funny.

    これハクロウも300倍で喋ってるって考えるとちょっと草

    — @DAYAFTERDAY-p4g0 likes

  • The idea that he's monologuing at 300x speed is hilarious 😂

    300倍速でしゃべってると思ったらおもろいな😂

    — @пирожкиорехи1 likes

  • Hakurou, chipmunk voice: "a-b-o-u-t-n-o-w-y-o-u-r-H-e-a-v-e-n-l-y-E-y-e-s-h-o-u-l-d-f-i-n-a-l-l-y-b-e-a-b-l-e-t-o-f-o-l-l-o-w-m-y-m-o-v-e-m-e-n-t-s!"

    ハクロウ「ｿﾛｿﾛｵﾇｼﾉﾃﾝｶﾞﾝﾆﾓﾜｼﾉｳｺﾞｷｶﾞｵｴﾙｼﾞｬﾛｳﾃ!」

    — @たけっちチャンネル0 likes

  • Hakurou: "Right about now, a single second must feel like a hundred years to you."

    ハクロウ「今のお主には1秒が100年ほどに感じる筈じゃろう」

    — @2代目卑影0 likes

  • He basically dosed himself with the superhuman drug, lol. Fare thee well — see you in a thousand years.

    セルフ超人薬で草、1000年後までごきげんよう

    — @HarukunnIkiteru2 likes

  • Someone: "Fare thee well — until a hundred years from now."

    ???「100年後までご機嫌よう」

    — @七氏之権兵衛4 likes

  • It's a self-inflicted "fare thee well, until a hundred years from now."

    セルフ、100年後までごきげんよう」

    — @のるうぇい18 likes

  • These characters' real cause of death? Not having read Bleach.

    このキャラの敗因はBLEACHを読まなかった事

    — @琥珀翡翠-w4y0 likes

  • Yeah, Bleach had a setup exactly like this.

    @かめお-t5k ブリーチにそんなんあったな

    — @me-me-sheep-nh2jt5 likes

  • A world where there are TONS of guys even stronger than this old man is genuinely insane to think about...

    この人より強いやつがわんさかいる世界はすげなぁ…

    — @ブーマン次元さん46 likes

  • This world is just way too unfair to ordinary humans, man.

    この世界、人間に不利すぎるんよなぁ

    — @アルテ0 likes

  • What I love about Slime is that it isn't all feel-good — humans actually die properly in it.

    転スラは綺麗事だけじゃなくて人間がちゃんと死ぬのがいい

    — @でっかい海老1 likes

  • A perfect demonstration of the eternal anime jinx: the moment you stop to explain your power out loud, you're basically dead.

    能力を説明したらだいたいやられるっていうジンクスを見せてくれたシーン

    — @はげの実力者1 likes
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