Jura Tempest Federation

Shion is a well endowed female ogre who is also a terrible cook. One of the six survivors of the ogre village. She becomes Rimuru's (self-appointed) secretary and bodyguard after evolving into a kijin and shares a rivalry with Shuna for Rimuru's attention. She is a great fighter, but often speaks out of turn, comically forcing Rimuru to take action to save face. She was given the simple title "Warrior" after the Orc Lord's defeat. Her strength grows severely from then on, even after Rimuru revives her from death, to the point that Demon Lord Clayman was no match for her. Shuna is an ogre princess and Benimaru's sister. One of the six survivors of the ogre village. She is good at making clothes and teaches her skills to the goblins after evolving into a kijin. Later Rimuru gave her the title "Holy Princess". Despite her traditional role as a healer and priestess, who stays behind in Tempest, she is a proficient magic user, even capable of using holy magic as a monster. Treyni is a dryad. She and her kind are guardians of Great Forest of Jura. She was the one who warns Rimuru of the arrival of the Orc Disaster and requests him to defeat it. Later on, she forms an alliance with Rimuru to form the Jura-Tempest Federation; though she tricks him into taking the job. Beforehand, she served under the Fairy Queen turned Demon Lord, Ramiris. Milim is a dragonoid and one of the strongest and most ancient True Demon Lords; daughter of the True Dragon Veldanava, making her Veldora's niece. She is also the most carefree and whimsical, only being concerned with interesting things. Milim is known as the "Destroyer", a "Catastrophe" type Demon Lord whose power is the epitome of destruction itself. She befriends Rimuru and frequently visits Tempest, only to cause him nothing but stress and problems from her unintentional mischief; aside Rimuru, she hangs out with her uncle and fellow Demon Lord, Ramiris, who prior to the story was her only friend.

Great Sage is one of Rimuru Tempest's most powerful abilities in the series. It is a "Unique Skill," which means it is a unique ability that Rimuru gained when he was first reincarnated as a slime. Great Sage is a type of artificial intelligence that exists within Rimuru's mind, and it serves as his personal advisor and assistant. Whenever Rimuru faces a problem or needs information, Great Sage is able to analyze the situation and provide suggestions and solutions. It has vast knowledge and expertise in various fields, including science, magic, history, and more. It also has the ability to communicate with Rimuru through telepathy, making it a valuable tool for him. This feature was possible because of a partition of the voice from "Words of the World" also known as "Voice of the world" upon rimuru reincarnation to help him. Great Sage's intelligence and analytical abilities are almost unparalleled, and it is able to perform complex calculations and simulations in seconds. It also has a vast database of information, which it can access at any time to provide Rimuru with the answers he needs. In addition, Great Sage has a wide range of other abilities, such as being able to manage Rimuru's skills and abilities, predict future events, and provide suggestions for strategic planning.