The country established by the protagonist Rimuru and many monsters who admire him and gather together is the "Jura Tempest Federation". Through agreements and trades with neighboring countries, the gentle ideal of "a country where humans and monsters walk together" is gradually taking shape. As a slime that was once a human, Rimuru fundamentally has "good intentions towards humans"... But there is a clear "hostility towards monsters" in this world. When this unreasonable reality is in front of him, Rimuru will make a choice. Make the choice of "not wanting to lose anything" - the much-anticipated reincarnation comedy enters a new chapter of the storm!