| Type | Episode |
|---|---|
| Date | 2018-10-23 |
In the Kingdom of the Dwarves
That Time I Got Reincarnated as a Slime 4
- Dwarf no Oukoku nite
- ドワーフの王国にて
Rimuru encounters legal trouble. He gets involved in an altercation outside the gates of Dwargon, and is thrown into jail for it. He is released after he provides healing potion to save some trapped miners, and meets the skilled blacksmith Kaijin.
Rimuru uses his ability to duplicate objects to help Kaijin out of a difficult spot.
| Character | Type | Name |
|---|---|---|
| Rimuru Tempest | Main | Okasaki Miho |
| Kaijin | Sub | Ono Atsushi |
| Name | Role | Character |
|---|---|---|
| Okasaki Miho | Voice Actor | |
| Ono Atsushi | Voice Actor |