Satoru Mikami is a worker in the company. He was thirty years old when he was killed by a thief. He was reincarnated as a slime in another world.He discovers that he has been reincarnated as a goop of slime in an unfamiliar realm. In doing so, he gains new skills specifically, the power to consume anything and mimic its appearance and abilities. He then stumbles upon the “Storm Dragon” Veldora, a sealed destruction-level Monster that has been sealed away to destroy a city in ashes for the past 300 years. Sympathizing with her plight, Satro befriends her, promising to help destroy the seal. In return, Veldora gives him the name Rimuro Tempest to grant him divine protection.Now, freed from the trappings of his past life, Rimuro embarks on a new journey with a different goal in mind. As he grows accustomed to his new body, his villainous actions spread throughout the world, slowly changing his destiny.Taking a break from his time as a teacher, the powerful slime Rimuru Tempest returns to his kingdom, named Tempest, just in time to begin negotiations with a nearby nation the Kingdom of Eurazania. Although the negotiations are anything but peaceful, they end successfully, allowing Rimuro to return and finish teaching. When attempting to return to the Tempest again, this time permanently, Rimuro is stopped by a mysterious figure who somehow manages to block the many magical abilities at his disposal.In Tempest, the situation is even worse. A group of unknown humans have invaded Earth and are attacking its citizens, both influential and innocent. They’re not just trying to harm – they intend to kill. Can Remuro overcome his powerful and dangerous enemy and return to the Tempest before it’s too late.