The Kingdom of Falmuth sits on the precipice of civil war as its leaders debate how to respond to the Jura Tempest Federation’s demands. Meanwhile, the Ten Great Saints discuss the Storm Dragon’s return and the crowning of a new Demon Lord. Although Rimuru and Hinata wish to settle their dispute peacefully, a sinister group acting from the shadows is determined to see things end in bloodshed!

A Reunion on the Battlefield: Rimuru and Hinata hoped to avoid fighting, but that seems inevitable now. Curiously, each of them believes the other is the aggressor. A third party is clearly pulling the strings, pushing both sides toward open war, and all signs point to the Seven Days Clergy. However, Rimuru is determined to keep the peace, ordering his subjects not to kill. Can the Demon Lord and the leader of the Ten Great Saints uncover the truth...

With the help of Queen Ramiris, the children are now in stable condition and should lead normal lives, much to Rimuru's relief. But all is not well... In fact, there are forces of humankind in this fantasy world that do not look kindly upon a slime-led nation of monsters. And now, insidious threats to Rimuru and the country of Tempest may be lurking around every corner!

Rimuru's taking a break from managing his kingdom of monsters by honoring the memory of his friend Shizu. Her former pupils will perish if he can't find a way to rein in their unstable magical energy, and he might just have the answer. It will involve enlisting the help of powerful elemental spirits--but he's about to find out that their fairy queen is a bit of a loose cannon...

The hostile human nation of Falmuth staged a devastating attack on Tempest, the peaceful land of monsters. Now, in order to bring back the dead and protect the living, Rimuru is determined to become the most feared of beings: a Demon Lord. But this evolution comes at a terrible price, and the assailing humans will soon realize how poorly they've chosen their enemy...

At the Walpurgis, a gathering of those at the pinnacle of monsterkind, Clayman finally plays his hand. The master of marionettes accuses Rimuru of attempting to usurp his Demon Lord status, and employs every trick in the book as the battle rages on multiple fronts. But if there's one thing this confrontation makes clear, it's that in the world of Demon Lords, only the truly mighty can stand tall...

After taking on the will and form of the Conqueror of Flames, Rimuru gains new, incredible skills and continues his journey to improve the conditions of his subordinates. But before long, Rimuru hears a distress call and finds his companions crushed by a motley crew of ogres! What quarrel do these menacing ogres have with Rimuru and the residents of the goblin village? And has Rimuru finally met a group of foes able to contend with his seemingly overpowered...

At the climax of the Walpurgis, Clayman's schemes are exposed, and he resorts to desperation. Although Rimuru is firmly in command, this is unlikely to be the end of the Moderate Harlequin Alliance. Meanwhile, the truth about a certain vampiric Demon Lord with connections to the Holy Church are sure to complicate matters for Tempest. The origins of Luminism are finally revealed!

A new arc begins! After the defeat of the Orc Lord, Rimuru is now the chancellor of the Jura Forest Alliance. With more companions than ever, his profile within the world rises, but this also draws the attention of ever more powerful figures. How will Rimuru handle the schemes of the mighty Dwarf King Gazel and the most ancient of Demon Lords, Milim Nava?!

At the suggestion of Demon Lord Carrion, Tempest and Eurazania have sent delegations to each other in the hopes of finding fruitful exchange. Benimaru leads the mission from Tempest, and From Eurazania is a party led by Albis the Golden Serpent. It seems as though trade might begin to flourish, until the members of Eurazania's delegation bristle at Rimuru. Can our gelatinous hero manage to get on their good side and be the glue to form a friendly...