- This article is currently under construction. The current state of the article may not meet the layout guide and standards of the wiki.
The Demon Lord Attacks (魔王来襲編 Maō raishū-hen) is the third arc of the That Time I Got Reincarnated as a Slime series. It was originally the third arc and volume of the Web Novel in Shōsetsuka ni Narō as part of the Life in the Royal Capital Arc, the story was greatly expanded in the light novels, leading the author to call it a new chapter/arc.
- Chapter 45: Those Who Observe
- Chapter 46: A Country's Name and Two Treaties
- Chapter 47: A City's Specialty
- Chapter 48: Demon Lord's Invasion
- Chapter 49: Hurricane Milim
- Chapter 50: Frontier Garrison
About three-quarters of this arc features content not found in the original web novels. These include:
- Phobio different with Web Novel Grucius ordered by Karion to Infiltrate Tempest and work together with Myulan which were ordered by Clayman as well
- Apito and Zegion's meeting with Rimuru
- Moderate Clown Troupe sending Charybdis into Rimuru City