S04E09: Investigating the Ruins
The investigation of the ancient ruins of Amrita begins.
Previous Episode 
Season 1
The Storm Dragon, Veldora
S1E1 / 02 Oct 2018
Meeting the Goblins
S1E2 / 09 Oct 2018
Battle at the Goblin Village
S1E3 / 16 Oct 2018
In the Kingdom of the Dwarves
S1E4 / 23 Oct 2018
Hero King, Gazel Dwargo
S1E5 / 30 Oct 2018
Shizu
S1E6 / 06 Nov 2018
Conqueror of Flames
S1E7 / 13 Nov 2018
Inherited Will
S1E8 / 20 Nov 2018
Attack of the Ogres
S1E9 / 27 Nov 2018
The Orc Lord
S1E10 / 04 Dec 2018
Gabiru is Here!
S1E11 / 11 Dec 2018
The Gears Spin Out of Control
S1E12 / 18 Dec 2018
The Great Clash
S1E13 / 25 Dec 2018
The One Who Devours All
S1E14 / 08 Jan 2019
The Jura Forest Alliance
S1E15 / 15 Jan 2019
Demon Lord Milim Attacks
S1E16 / 22 Jan 2019
The Gathering
S1E17 / 29 Jan 2019
Evil Creeps Closer
S1E18 / 05 Feb 2019
Charybdis
S1E19 / 12 Feb 2019
Yuuki Kagurazaka
S1E20 / 19 Feb 2019
Shizu-san's Students
S1E21 / 26 Feb 2019
Conquering the Labyrinth
S1E22 / 05 Mar 2019
Saved Souls
S1E23 / 12 Mar 2019
Black and the Mask
S1E24 / 19 Mar 2019
Season 2
Rimuru's Busy Life
S2E1 / 12 Jan 2021
Trade with the Animal Kingdom
S2E2 / 19 Jan 2021
Paradise, Once More
S2E3 / 26 Jan 2021
The Scheming Kingdom of Falmuth
S2E4 / 02 Feb 2021
Prelude to the Disaster
S2E5 / 09 Feb 2021
The Beauty Makes Her Move
S2E6 / 16 Feb 2021
Despair
S2E7 / 23 Feb 2021
Hope
S2E8 / 02 Mar 2021
Putting Everything on the Line
S2E9 / 09 Mar 2021
Megiddo
S2E10 / 16 Mar 2021
Birth of a Demon Lord
S2E11 / 23 Mar 2021
The One Unleashed
S2E12 / 30 Mar 2021
The Visitors
S2E13 / 06 Jul 2021
A Meeting of Humans and Monsters
S2E14 / 13 Jul 2021
Ramiris's Warning
S2E15 / 20 Jul 2021
The Congress Dances
S2E16 / 27 Jul 2021
The Eve of Battle
S2E17 / 03 Aug 2021
The Demon Lords
S2E18 / 10 Aug 2021
The Signal to Begin the Banquet
S2E19 / 17 Aug 2021
On This Land Where It All Happened
S2E20 / 24 Aug 2021
Adalman, the Index Finger
S2E21 / 31 Aug 2021
Demon Lords' Banquet ~Walpurgis~
S2E22 / 07 Sep 2021
Returning from the Brink
S2E23 / 14 Sep 2021
Octagram
S2E24 / 21 Sep 2021
Season 3
Demons and Strategies
S3E1 / 05 Apr 2024
The Saint's Intentions
S3E2 / 12 Apr 2024
Peaceful Days
S3E3 / 19 Apr 2024
Everyone Has a Part to Play
S3E4 / 26 Apr 2024
Meeting of Both Sides
S3E5 / 03 May 2024
Those Approaching
S3E6 / 10 May 2024
Saint and Demon Clash
S3E7 / 17 May 2024
Misunderstanding
S3E8 / 24 May 2024
The Scheming of the Seven Days
S3E9 / 31 May 2024
God and Demon Lord
S3E10 / 07 Jun 2024
Reconciliation and Agreement
S3E11 / 14 Jun 2024
Festival Preparations
S3E12 / 21 Jun 2024
Invitation for All Nations
S3E13 / 28 Jun 2024
Labyrinth and Storm Dragon
S3E14 / 05 Jul 2024
Audience
S3E15 / 19 Jul 2024
Benimaru's Ordeal
S3E16 / 26 Jul 2024
The Lightspeed Hero
S3E17 / 02 Aug 2024
A Throng of Visitors
S3E18 / 16 Aug 2024
Festival Eve
S3E19 / 23 Aug 2024
Nation's Opening Festival
S3E20 / 30 Aug 2024
The Martial Arts Tournament
S3E21 / 06 Sep 2024
Settling the Score with the Hero
S3E22 / 13 Sep 2024
The Labyrinth Is Opened
S3E23 / 20 Sep 2024
After the Festival
S3E24 / 27 Sep 2024
Season 4
New Days
S4E1 / 03 Apr 2026
The Dungeon Evolves
S4E2 / 10 Apr 2026
The Avatar Team Is Formed
S4E3 / 17 Apr 2026
Invitation
S4E4 / 24 Apr 2026
The First Step
S4E5 / 08 May 2026
The Council of the West
S4E6 / 15 May 2026
The Mastermind's Identity
S4E7 / 22 May 2026
The Groundwork of Greed
S4E8 / 29 May 2026
Investigating the Ruins
S4E9 / 05 Jun 2026
The Master of Greed
S4E10 / 12 Jun 2026
Miho Okasaki
Rimuru (voice)
Tomoaki Maeno
Veldora (voice)
Takuya Eguchi
Souei (voice)
Hochu Otsuka
Hakurou (voice)
Asuna Tomari
Gobta (voice)
Chikahiro Kobayashi
Ranga (voice)
Jun Fukushima
Gabiru (voice)
