The story takes place between the first and second season, where Rimuru confronts the swirling conspiracies in the Coleus kingdom.
Source: MyAnimeList
Availability may vary by region.
Hikari Hanatsu (ヒカリハナツ)
Kokoro Travel (ココロトラベル)
Other anime that aired alongside That Time I Got Reincarnated as a Slime: Visions of Coleus.
