August 15, 2026 · 12 min read · Episode guide · Episode 20 · Kagex Blog

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That Time I Got Reincarnated as a Slime Episode 20 Review — On This Land Where It All Happened

Anime hub: That Time I Got Reincarnated as a Slime · Season 2

Contains spoilers for this episode.

That Time I Got Reincarnated as a Slime Season 2 Episode 20 On This Land Where It All Happened official promotional art
Official promotional art. © Fuse / Kodansha / Eight Bit / Tensura Production Committee

Kagex rating: 8.4 / 10

Episode: Season 2 · Episode 20 — “On This Land Where It All Happened”

Air date: August 24, 2021 · Runtime: ~24 minutes · Studio: 8bit

Gabiru barely beats Hermes, Middray of the Dragon Faithful outclasses even Suphia, Albis still folds Yamza through a doppelganger, and Clayman remote-controls the loser into a Charybdis encore. This land is where the last calamity was born, and the show will not let you forget it.

Previous: Season 2 Episode 19 — The Signal to Begin the Banquet · Hub: That Time I Got Reincarnated as a Slime

Hook

Gabiru barely beats Hermes, Middray of the Dragon Faithful outclasses even Suphia, Albis still folds Yamza through a doppelganger, and Clayman remote-controls the loser into a Charybdis encore. This land is where the last calamity was born, and the show will not let you forget it.

This page is the sequential stop after Episode 19 — not a random recap dump. Scores below are for this 24 minutes only.

Quick Information

  • Anime: That Time I Got Reincarnated as a Slime
  • Season / Episode: Season 2, Episode 20 (overall #44)
  • English title: On This Land Where It All Happened
  • Japanese episode title: 因縁の地で
  • Runtime: ~24 minutes
  • Studio: 8bit
  • Original air date: August 24, 2021
  • Kagex score: 8.4 / 10
  • Where to watch legally: Crunchyroll (region-dependent)
That Time I Got Reincarnated as a Slime official banner Season 2 Episode 20
Official banner art. © Fuse / Kodansha / Eight Bit / Tensura Production Committee

Should You Watch It?

Watch it for the field duels getting nasty and the Charybdis callback. Skip it and Adalmann’s fog has no war around it. Action-heavy, sequential, a little crowded with names. If you like Gabiru actually earning a win, this is that rare hour.

Beginner-friendly? No as a start point. Watch from Season 1 Episode 1. This installment assumes you already know Tempest’s core cast — Rimuru at minimum.

Bottom line: sequential viewers should not skip “On This Land Where It All Happened.” Fight-only watchers may feel the talkier stretches; nation-building fans will not.

Spoiler Warning

Spoilers for Season 2 Episode 20 (“On This Land Where It All Happened”) follow. Stop above for a clean first watch. This page does not spoil later episodes.

Story Recap

Gabiru, not as a punchline

Gabiru versus Hermes is a dragonewt-on-something fight the marsh prince has to win without Rimuru holding his hand. He barely does. That “barely” is the character work Season 1’s mutiny bought: a loud heir who learned the orc war the hard way, now useful on a real field. Watching him is watching Tempest’s joke lieutenant pay rent.

The win is ugly and sufficient. Hermes going down is a named chip off Clayman’s board. Gabiru getting to be competent is the sentimental victory. The camera does not make it easy. Good.

Gabiru versus Hermes a fight the marsh prince has to win without Rimuru holding his hand. Barely does.

Watching him is watching Tempest’s joke lieutenant pay rent. The camera does not make it easy. Good. A barely is a spine, not a punchline, and Hermes going down is a named chip off the board.

Middray, who looks human and is not

Middray of the Dragon Faithful — Milim’s religious military — watches and then demonstrates a skill ceiling that overwhelmed even Suphia. He looks human. He is a dragonewt, like Gabiru, which is a taxonomic slap: the marsh prince’s whole identity is a starter kit next to Milim’s church. Faithful as in cult. Cult as in an army that thinks a demon lord is a god.

That matchup is world-building with bruises. Eurazania’s Beastketeers meeting Milim’s clergy on Carrion’s dirt is the demon-lord workplace using nations as chess squares. Gabiru recognizing a stronger cousin is the personal beat.

Middray of the Dragon Faithful — Milim’s religious military — watches then demonstrates a ceiling that overwhelmed even Suphia. Looks human.

Gabiru recognizing a stronger cousin is the personal beat inside a taxonomic slap, and Eurazania meeting Milim’s clergy on Carrion’s dirt is the workplace using nations as chess squares.

Yamza’s double, Albis’s no

Yamza uses an artifact Doppelganger to multiply himself. Albis still beats him soundly. Beastketeer quality versus Five Fingers hardware. The doppelganger trick is a rhyme with Rimuru’s Hinata escape, used here as a coward’s extra life. It does not save Yamza’s pride. It barely saves his body.

Albis as the composed officer of Carrion’s three is the duel the premiere’s foyer brawl was training you to want. Poison, control, a fight that looks like a hunt. Yamza tries to surrender when the math is obvious. Surrender is a luxury Clayman does not sell.

Yamza uses an artifact Doppelganger to multiply. Albis still beats him soundly. Beastketeer quality versus Five Fingers hardware. Doppelganger trick a rhyme with Rimuru’s Hinata escape, here a coward’s extra life. Does not save pride.

Remote control, calamity encore

Clayman takes Yamza over and forces a transformation into Charybdis. The forest’s last capital-class storm monster, reused as a puppet on the land where this kind of thing already happened in Season 1. The title is On This Land Where It All Happened, and the “it” is Charybdis, Carrion’s debt, Tempest’s Gluttony memory, the clowns’ old product.

Forcing a surrendering officer into a calamity is Clayman’s ethics in one spell: people are sockets. Phobio opened one once. Yamza becomes one. The field has to deal with a sequel boss nobody budgeted in the trap design.

Clayman takes Yamza over and forces transformation into Charybdis. Forest’s last capital-class storm monster, reused as a puppet on the land where this kind of thing already happened in Season 1.

A battlefield that remembers a siege

Tempest’s people have killed a Charybdis before. That does not make a second one polite. Gluttony is with Rimuru at a banquet, not here. Benimaru’s field has to solve a calamity with the kit that is actually on the dirt. That constraint is the tension. The hour ends on the mutation more than the kill. Next week’s fog and Adalmann are another Finger. This week’s Finger became a weather system.

Gabiru’s small win sits next to a calamity encore on purpose. The show will not let a dragonewt have a clean hero episode while Clayman still has a remote.

Tempest’s people have killed a Charybdis before. Does not make a second one polite. Gluttony with Rimuru at a banquet, not here.

That Time I Got Reincarnated as a Slime key visual Season 2 Episode 20
Official key visual. © Fuse / Kodansha / Eight Bit / Tensura Production Committee

Story Analysis

Episode 44 is a duel reel with a thematic title, and the Charybdis encore is the knife. Reusing a Season 1 calamity as Clayman’s puppet is mean and smart: the land remembers, the skill remembers, the audience remembers Gluttony not being here. Gabiru’s win is the heart. Middray is the Milim-church world-building. Yamza’s surrender denied is the villain thesis.

Pacing is sequential duels then mutation. Comedy is mostly Gabiru residue. World-building: Dragon Faithful as Milim’s army, doppelganger artifacts, remote possession into calamity-class. Required. Crowded. The title does real work. If you only remember one image, make it Yamza’s no becoming a storm.

Duel reel with a thematic title, Charybdis encore the knife. Reusing a Season 1 calamity as Clayman’s puppet is mean and smart: land remembers, skill remembers, audience remembers Gluttony not here. Gabiru’s win the heart. Middray the Milim-church world-building. Yamza’s surrender denied the villain thesis. Sequential duels then mutation. Comedy mostly Gabiru residue. Dragon Faithful as Milim’s army, doppelganger artifacts, remote possession into calamity-class. Required. Crowded. Title does real work. One image: Yamza’s no becoming a storm. Charybdis on this land a sequel the clowns already sold; Clayman repeating product. Gabiru’s close win the mutiny kid’s promotion exam. Middray looking human hiding Milim’s church in plain sight. Peak Clayman filth. Happier than I should be at Gabiru. Scary poster Middray. Analysis is reuse as a knife. Constraint as fairness. Mouth at a banquet. Dirt kit. Nested heart and filth. No clean hero episode while a remote is on. Correct. Crowded. Mean. Required. Title working. It. Happened.

Character Analysis

Gabiru as a lieutenant who finally lands a win. Hermes as the chip. Middray as Milim’s scary priest. Suphia as the Beastketeer who hit a ceiling. Albis as the hunter. Yamza as the Finger who tried to quit. Clayman as the remote.

Benimaru conducting a field that just grew a calamity. Milim implied in every Dragon Faithful motion. Phobio still in the clown fight off the title’s main camera. Rimuru absent because banquet. The absence of Gluttony is a character. Gabiru is the one I am proud of. Yamza is the one I wince at.

Gabiru lieutenant who finally lands a win. Hermes the chip. Middray Milim’s scary priest. Suphia Beastketeer who hit a ceiling. Albis the hunter. Yamza the Finger who tried to quit. Clayman the remote. Benimaru conducting a field that just grew a calamity. Milim implied in every Dragon Faithful motion. Phobio still in the clown fight off the title’s main camera. Rimuru absent because banquet. Absence of Gluttony a character. Gabiru the one I am proud of. Yamza the one I wince at. Dual MVPs of feeling: proud and wince. Mutiny kid exam.

That Time I Got Reincarnated as a Slime promo art Season 2 Episode 20
Promo art. © Fuse / Kodansha / Eight Bit / Tensura Production Committee

World Building

Dragon Faithful as a religious military for a demon lord. Dragonewt as a category that includes Gabiru and Middray at wildly different ceilings. Artifact doppelgangers. Remote transformation into a known calamity. Geographic memory: this land already hosted Charybdis.

Surrender as a status Clayman does not recognize. Officers as sockets. Sequel bosses as recycled metaphysics. Tempest having to kill a calamity without the slime who ate the last one. That constraint is the setting being fair for once. The field does not get the mayor’s mouth. It gets Gabiru and Albis and a trap that was not sized for a storm.

Dragon Faithful as a religious military for a demon lord. Dragonewt as a category that includes Gabiru and Middray at wildly different ceilings. Artifact doppelgangers. Remote transformation into a known calamity. Geographic memory: this land already hosted Charybdis. Surrender as a status Clayman does not recognize. Officers as sockets. Sequel bosses as recycled metaphysics.

Nothing here is later-arc homework. If a name or rule is only teased, it stays a tease.

Animation

Duel variety is the budget: Gabiru scramble, Middray’s overwhelming skill, Albis versus doubles, then Charybdis mass again. 8bit revisits Season 1 kaiju language on a different show. TV, recognizable, a little “we have done this monster,” which is thematically correct. Yamza’s transformation is the ugly money shot. Fine, crowded, readable enough.

Duel variety the budget: Gabiru scramble, Middray’s overwhelming skill, Albis versus doubles, then Charybdis mass again. 8bit revisits Season 1 kaiju language on a different show. TV, recognizable, a little we have done this monster, thematically correct.

Kagex animation score for this episode: 8.4 / 10 — peaks vs average cuts, not a sakuga clip ranking.

Music and Voice Acting

Score 8.3. 8bit’s TV mix leans on Elements Garden sting + silence. Japanese track is the reference for Rimuru’s dual register (cute slime vs office-brain). Dub timing varies by season; don’t wait on it to judge the episode.

Hidden Details

  • Charybdis on this land is a sequel the clowns already sold once; Clayman is repeating product.
  • Gabiru’s close win is the mutiny kid’s actual promotion exam.
  • Middray looking human is the show hiding Milim’s church in plain sight.

Best Moments

  • Gabiru barely winning a fight he had to win.
  • Albis ignoring a doppelganger and beating the man anyway.
  • Yamza’s surrender turning into a calamity on a land that already survived one.

Pros & Cons

Pros: Specific to “On This Land Where It All Happened” — A duel reel that mutates into a Charybdis encore. Crowded, mean, required. Gabiru’s win is the heart; the remote is the thesis.

Cons: Requires earlier episodes. Viewers who only want climax fights may call the political / logistics scenes slow even when they are load-bearing.

Final Verdict

Kagex overall: 8.4 / 10 — A duel reel that mutates into a Charybdis encore. Crowded, mean, required. Gabiru’s win is the heart; the remote is the thesis.

  • Story: 8.5
  • Characters: 8.5
  • Animation: 8.4
  • Music: 8.3
  • Enjoyment: 8.5

Yamza getting turned into Charybdis after trying to surrender is peak Clayman filth. Gabiru’s close win made me happier than it should have. Middray is a scary poster for Milim’s church.

What to Expect Next

Next week the banquet party leaves, and a fog full of death magic introduces Adalmann, the Index Finger.

Next: Season 2 Episode 21 — Adalmann, the Index Finger. Watch legally on Crunchyroll.

FAQ

Do I need to watch Season 2 Episode 20?

Yes if you are watching the TV series in order. Skipping “On This Land Where It All Happened” leaves a hole later episodes assume you have.

What is the Japanese title?

因縁の地で — Crunchyroll English title is “On This Land Where It All Happened.”

When did it air?

August 24, 2021 in Japan. ~24 minutes. Studio 8bit.

Is this Season 2 filler?

No. Tensura’s “quiet” hours are usually nation, diplomacy, or setup — not recap filler.

Where does this sit in the overall count?

Overall TV episode 44 of the main series (S1–S3 are 72; Season 4 continues from 73).

Should I watch Slime Diaries first?

No. Diaries is optional comedy. This review is the main TV track.

Where are character guides?

Tensura charactersRimuru, Veldora, Milim, and the Tempest officers.

Where are facts / spoilers for the franchise?

Fact and Spoilers on the hub. This episode page stays inside Episode 20.

Keep exploring

Your turn

Was “On This Land Where It All Happened” a continue episode or a skip-risk for you? Favorite beat? Who should get the next character page?

Sources: Crunchyroll episode titles; Wikipedia list of Tensura episodes; official Tensura anime site.

Our reaction

Spoiler-aware take after the recap — how the episode felt to watch.

8.4/10

Yamza getting turned into Charybdis after trying to surrender is peak Clayman filth. Gabiru’s close win made me happier than it should have. Middray is a scary poster for Milim’s church.

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