That time I got reincarnated as a slime / Fuse

"The Tempest Founder's Festival is in full swing, with Rimuru and all the monsters under him keeping busy setting up the attractions. From live concerts to incredible feats of monster engineering (most notably, the massive dungeon), revelers are sure to have their minds blown. But all eyes are on the main event--the First Tempest Battle Tournament--and who should decide to participate but the Hero himself, Lightspeed Masayuki! What will come of his chance encounter with the demon lord Rimuru?"--Back cover.

"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!"--Back cover.

"After a furious battle with the orc lord, peace has once again returned to the Forest of Jura. Rimuru may be heading up the Great Forest of Jura Alliance, but he's most worried about finishing his town...until a visit from King Gazel Dwargo of the dwarves turns everything upside down! Not only that, but Rimuru is about to have a run-in with Milim Nava, an exceptionally dangerous demon lord known as the 'Destroyer.' What's a slime to do?!"--Back cover.

"The seraphim force led by Michael proceeds with its plans for invasion, and the Octagram's eight demon lords assemble once more for a Walpurgis Council to determine their response. They need to act fast, for Michael's Ultimate Dominion skill has brought even Velzard--a True Dragon and Veldora's eldest sister--under his control. How will they solve this conundrum? Rimuru isn't sure yet, but as he readies Tempest for war, he'll soon discover a lot of his problems are much closer to home than he thought"--Back cover.

"Rimuru has emerged victorious in the war against the Eastern Empire, but between the ultimate skill Michael hijacking Emperor Ludora's body and the mystic lord Feldway's secret machinations, he still has a lot left on his plate. Plus, a recent fight at the labyrinth--which occurred while Rimuru was busy with his own climactic battle--revealed serious flaws in Tempest's defenses. Now that he's finally got a moment to breathe, it's time for everyone's favorite slime to address some major infrastructure issues with his team"--Back cover.

"Threatened by Tempest's continued rapid expansion, the Eastern Empire finally starts setting the stage for all-out war with the monster nation. According to Chloe, the time-traveling Hero, there exists a timeline in which the Empire kills Rimuru and Tempest susbsequently collapses. While Rimuru's doom isn't set in stone, his victory isn't a foregone conclusion either. This may be a different timeline, but the demon slime nonetheless steps up his guard--and just as he does, several imperial spies infiltrate Tempest"--Back cover.

"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"--Back cover.

"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!"--Back cover.

As Rimuru continues to care for Shizu's students, he works to find a way to harness their unstable magical energy. He enlists the help of powerful elemental spirits, however their fairy queen could be a problem.

When the nations of Tempest and Eurazania send delegates to each other to improve trade relations, the delegation from Eurazania is taken aback by Rimuru. He will need to find a way to get on their good side if the two nations want to foster a friendship between them.