Lonely thirty-seven-year-old Satoru Mikami is stuck in a dead-end job, unhappy with his mundane life, but after dying at the hands of a robber, he awakens to a fresh start in a fantasy realm...as a slime monster! As he acclimates to his goopy new existence, his exploits with the other monsters set off a chain of events that will change his new world forever!

A gutsy glob in crisis! News of the demon lord Clayman’s defeat by Rimuru shakes the Holy Empire of Lubelius to its core—especially since the chief knight of the nation’s Imperial Guard and captain of the Crusader forces, Hinata Sakaguchi, launched a bold attack on Rimuru not long ago. Things look only more dire when a priest sent by Rimuru to attend an urgent meeting of Lubelius bigwigs ends up murdered. The stakes couldn’t be higher for either side as Hinata heads to Tempest to settle things—one wrong move could spell total warfare!

Framea’s father has come to Tempest to bring his wayward daughter home to her fellow rabbitfolk, but she’s not so eager to return. Little does dear old dad know that Framea is working for none other than the mighty Rimuru...and that her boss would like to tag along for the trip! But a demon lord visiting a podunk village might cause a commotion-is it time to travel incognito...?

Let the good times roll! It's festival time in Tempest, and this demon slime knows how to throw a party! After reconciling with Hinata and the Western Holy Church, Rimuru's pulling out all the stops to prepare a massive bash in his nation of monsters-with a little help from his many friends and allies! It's the perfect opportunity to debut his new demon lord title while showing the world everything the Jura-Tempest Federation has to offer. Will this big event go off without a hitch?

NO REST FOR A NATION-BUILDING SLIME! Now that Rimuru's monster-centric town has blossomed into a bona fide independent nation, it's time for his next step: build and maintain diplomatic relations with nearby countries! With a group of his trusty monster pals, Rimuru travels to the Beast Kingdom of Eurazania and the Dwarven Kingdom to meet with their respective heads of state and represent his domain as best as a slime possibly can. As if there wasn't already enough on Rimuru's mind, the otherworlder Shizu has been visiting him in his dreams, begging him to save her former students. Looks like that'll be another stop on this pliable pioneer's itinerary...

AN INSATIABLE GREED The Tempest Founder’s Festival was a roaring success, and after working out a few kinks, the Advanced Dungeon is proving to be a major Tempest tourist attraction. Now Rimuru’s next objective is to join the infamous Council of the West—however, a certain influential figure working from the shadows of the Council has no intention of allowing someone as powerful as Rimuru to take a seat at the table, and she will stop at nothing to quietly snuff him out before he makes any moves!

Framea and her party have descended into Tempest's underground labyrinth with the promise of great treasure not far from their minds. However, she's got another job-to write a strategy guide to help would-be adventurers navigate the many dangers of the dungeon!

ABANDON HOPE, ALL WHO ENTER HERE The Eastern Empire’s vast army (over 900,000 strong) is ready to invade the Forest of Jura. Thanks to Ramiris’s mind-boggling powers, Tempest’s entire capital-buildings, inhabitants, and all-has been evacuated into the nation’s labyrinthine Dungeon. While Primal Demons Testarossa and Ultima kick some serious imperial butt over on the front lines, the rest of the Empire’s army attempts to storm the Dungeon. Little does the enemy know, however, that they’re about to face a devastating bloodbath at the hands of Tempest’s own mighty forces...

WHEN IT RAINS, IT POURS! Despite Rimuru's absence, things seem to be proceeding fairly smoothly in the newborn nation of Tempest. But there's trouble brewing elsewhere: The nearby Kingdom of Farmus's top brass are planning an invasion of Tempest, and at the same time, Rimuru's demon lord friend Milim Nava has declared war on Tempest's ally, the Beast Kingdom of Eurazania. As if things couldn't get any worse, all communication between Rimuru and his crew back home has suddenly gone silent in their hour of need! Tempest may be in for some hard times ahead-but this steadfast slime isn't throwing in the towel just yet. He has a plan...and it's downright demonic!

FOREVER…IF POSSIBLE ​ The Merciless Queen, a high-ranking commander unit for the Legion, has finally been taken into custody. Now the Federacy, the United Kingdom, and the Alliance of Wald can conduct a thorough analysis of this special Ameise, which houses the consciousness of Legion developer Zelene Birkenbaum. If their efforts bear fruit, they may learn the secret to stopping the Legion once and for all! In the meantime, the Federacy has decided to rest its battle-worn blades. The Eighty-Sixth Strike Package has been allowed leave for the first time in ages. As they arrive in the Alliance of Wald’s territory, they are able to step away from the iron and blood and enjoy a rare vacation! And it seems that two members of the Strike Package are getting a bit cozier than the rest…