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 15

Arc 15 of 22 in That Time I Got Reincarnated as a Slime

Arc 15: Volume 15

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 war brings Rimuru and his allies into clashes with powerful dragons and imperial fighters. The struggle exposes the forces behind the emperor’s campaign.

Where it sits

Arc 15 in That Time I Got Reincarnated as a Slime
FormatVolumesUnitsLanguage
Light novelVol 15Prologue–epilogueJapanese
Light novelVol 15Prologue–epilogueEnglish

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