Manga Volume 5

 is the fifth volume of the manga adaptation of That Time I Got Reincarnated as a Slime.

Synopsis
DISASTER STRIKES

After laying waste to the orcish forces that threatened the Forest of Jura, Rimuru's group now faces Gelmud and the dreaded orc lord. And with some encouragement from Gelmud, the orc lord evolves into his ultimate form: The Orc Disaster! Could this new and fearsome foe outmatch Rimuru's razor-sharp wits and unimaginable power? Or will The Orc Disaster dine upon slime with a side of kijin in the climax of the forest war arc?

Chapters

 * Chapter 23: Orc Disaster
 * Chapter 24: The Submissive Demon Lord
 * Chapter 25: That Which Devours All
 * Chapter 26: The Jura Forest Alliance
 * Chapter 27: A Place to Relax

Bonus Short Story
 * Veldora's Slime Observation Journal: Full Stomach