Where the anime ends, and where the books carry onAnime, manga, light novels and web novels, lined up by story arc

Arc Almanac

3 Oct 2026Draft. Not yet checked against the books.

All series / That Time I Got Reincarnated as a Slime / Arc 13

Arc 13 of 22 in That Time I Got Reincarnated as a Slime

Arc 13: Volume 13

Arc name chosen by Arc Almanac, because the books don’t name it.

I’ve watched through

Season 1 stops before this arc.

Season 2 — Part 1 stops before this arc.

Season 2 — Part 2 stops before this arc.

Scarlet Bond stops before this arc.

Season 3 stops before this arc.

Tears of the Azure Sea stops before this arc.

Season 4 — Cour 1 stops before this arc.

Season 4 — Cour 2 stops before this arc.

What happens

The Empire’s attack puts Tempest’s army and labyrinth defenses to the test. Rimuru’s allies must turn their preparations into a coordinated response.

Where it sits

Arc 13 in That Time I Got Reincarnated as a Slime
FormatVolumesUnitsLanguage
Light novelVol 13Prologue–epilogueJapanese
Light novelVol 13Prologue–epilogueEnglish

Draft. Not yet checked against the books. Report a wrong mapping.