Holy Empire Ruberios

Holy Empire Ruberios (神聖法皇国ルベリオス) is the theocratic headquarters of the Western Saints Church.

The nation is led by Pope Emperor Louis Valentine, but he is actually a subordinate Vampire of Demon Lord Luminous Valentine, whose first name is used as the God of the Western Nations' greatest religion and who rules Ruberios from the shadows. Until his death, Roy Valentine, who was Louis' twin brother, played the strawman role of the "villainous Demon Lord" Valentine to unite Ruberios against a supposed ever-present threat.

The Holy Empire, to gain military strength, and raise morale and sense of partial security amongst the people, created the Holy Knights, which often consisted of otherworlders, such as Hinata Sakaguchi. These knights were recognized as a powerful military force across the world of Tensei Shitara Slime Datta Ken.

Founding
The Founding of the Holy Empire Ruberios was made so when the Demon Lord, Luminous Valentine, had lost her original vampire nation, The Night Rose, to one of the Storm Dragon Veldora, many destructive random rampages that completely annihilated her first nation. Forcing her to once again go into hiding, consolidate power and build a brand new nation when the opportunity arose.

Eventually, the chance came during the annual Tenma Great War, where the gates of Heaven would be opened and the Angels would begin their destructive rampage across the world to limit and suppress human society from advancing to much and keep the world stable. Resulting in wide-scale human death, destruction of nations and empires and the complete chaos in the world at large. Seeing the opportunity, Luminous took full advantage of this chaos to found her own faith that deified her as a goddess, A claim she easily backed up thanks to the immense power she possessed as a True Demon Lord. This new religion was immediately taken up by the human survivors who began flocking to her in mass, eventually setting the roots that would begin its transformation into an Empire.

Underground Empire
Not content with simply having a single human empire and learning from the mistakes of her first country, Ruminas decided that she would also create a powerful underground empire within the belly of her human one. With the emergence of the Holy Empire of Ruberios, Luminous had also created a secret underground empire of her fellow vampires that was thus then sustained and maintained by her human empire. Having successfully provided a stable location where her servants could successfully live in peace safety in hiding and providing them with a stable source of human blood to feed them. With several of the Empire's highest ranking officials and confidants being in fact, Luminous's vampire servants hiding in plain sight. Luminous herself lives in secrecy within the nation's borders and the Empire's emperor being her servants that acts as her stand in in ruling. pt-br:Império Sagrado Ruberios Sagrado Imperio de Ruberion