- 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))
- Rie Tanaka (Trainie (voice))
- Rina Hidaka (Milim (voice))
- Anzu Haruno (Rimiris (voice))
That Time I Got Reincarnated as a Slime — S3E23
Episode: The Labyrinth Is Opened
Air Date: 2024-09-20
Runtime: 24 min
Overview
Rimuru's dungeon is finally revealed, and his new ally Masayuki is among its first challengers. Later, after the festival is over, Rimuru's biggest job still awaits.