He is also known as Sensei to his former students. He is also a partner and best friend of True Dragon Veldora Tempest. Also known as the 'Tempest of the Great Jura Forest,' he is regarded as one of the strongest Demon Lords amongst the Mighty Eight Star Demon Lords as well as the only known Great Demon Lord. He is the founder and King of the Monster Country. While the Western Holy Church originally deemed Rimuru and Tempest a threat, Luminous herself apparently never thought ill of them.Rimuru Tempest, formerly known as Mikami Satoru, is the main protagonist of Tensei Shitara Slime Datta Ken.Luminous appears to be a lesbian or sexually attracted to women in general, as she shows lust towards the sight of Hinata's naked body and cuddles the Holy Ark containing Chloe's naked body.The author admitted that he intended to paint her as a haughty noble this way, not knowing that it's actually a self-deprecating, humble pronoun. She addresses herself as 'warawa,' which is an archaic pronoun used by women in samurai families.When Chloe and Hinata's younger selves ventured into the Central World and vanished from Hero Chloe's body, Luminous took measures to safeguard it by sealing it away, preventing any potential chaos instigated by Chronoa. Throughout these tumultuous years, Luminous forged deep bonds of friendship with Chloe and Hinata. Her cover was eventually blown in the far future thanks to Veldora and Milim Nava. To maintain her influence within the Demon Lord Council, Luminous arranged for Roy Valentin to take her place, attending the Walpurgis Banquets incognito as one of Roy's two aides. To govern Lubelius, Luminous entrusted the role of ruler to Louis Valentin, while she herself assumed a hidden presence. Undeterred by this setback, Luminous turned her attention towards a new endeavor: establishing Lubelius, where she concealed her rule from the shadows. 'Night Rose Palace'｣, met its demise at the hands of Veldora, set-up by the Trinity Wisemen, albeit with the timely warning from Chloe enabling the evacuation of its inhabitants. However, her vampire domain, known as Night Rose ｢夜薔薇宮｢ナイトローズ｣, naito rōzu, lit. Through her indomitable prowess, Luminous earned a coveted position as the fifth member of the esteemed Demon Lord Council.

Recognizing Gunther's invaluable contributions, Luminous elevated him to a position of great importance, and he became an instrumental figure in her rule. In due course, Luminous encountered Gunther, who pledged unwavering loyalty and served as her noble assistant, fulfilling the role of a personal butler. To maintain order, Luminous made the difficult decision to split Valentin into two distinct beings: Louis and Roy. Yet, Valentin's constant antagonism towards her other subordinates posed a significant problem. Seizing control of the remaining vampire forces, Luminous subjugated Valentin, a formidable and bloodthirsty Vampire. However, as time passed, Luminous grew weary of her creator's capricious behavior, and with a display of extraordinary power, she ended Twilight Valentine's life using a potent Disintegration spell. Luminous, born as a remarkable creation of the brilliant Divine Ancestor Twilight Valentine, was hailed as their masterpiece. She also enjoys classy food and entertainment, so much that she asked for a musical exchange after watching the concert in Tempest's opening festival. However, she has no problems with pretending to be a maid when it comes to hiding her true identity. Luminous is a usually haughty individual who basks in her superiority when sitting on her throne or when acting out her official position as a ruler. She has a set of pure white fangs and is commonly seen wearing gothic dresses but seems to have a penchant for maid uniforms too. 'Gold-Silver Mystic Eyes'｣ eyes glisten in deep crimson and light sky blue. Her Heterochromatic ｢金銀妖瞳｢ヘテロクロミア｣, heterokuromia, lit. She is a cute silver-haired girl whose appearance is in her late teens.

Rimuru tempest demon lord figure