Ki Juranbarada, also known as the Lost Warlord, serves as the First Primogenitor. He is one of the last survivors of the ancient Deva civilization prior to his transformation into a vampire. He reigns over the Warlord's Empire, a dominion famed for possessing the world's most formidable military. His influence significantly shapes the balance of power among the other Primogenitors. He presents the appearance of a man in his early twenties, towering over 190 centimeters tall with short steel-gray hair and a slender, muscular athletic build. His typical attire consists of rugged cargo pants, coarse work boots, and a tank top, frequently with a leather parka draped over one shoulder. A distinctive dragon tattoo adorns his exposed left shoulder, enhancing his imposing stature. His personality is marked by calmness and a preference for non-interference, despite wielding overwhelming power. Although commanding supreme military might, he avoids unnecessary violence and actively strives to maintain peace between humans and demons. This commitment drove him to draft and establish the Holy Ground Treaty, a pivotal agreement enabling coexistence between the two factions and shaping the era's stability. Historically, he collaborated with the other Primogenitors, Giada and Aswad, to create the Fourth Primogenitor as a weapon against Cain. After deeming it uncontrollable, they fragmented its power into twelve Kaleid Bloods. Ki possesses profound knowledge of beast vassals, rooted in his ancient origins, understanding them as autonomous beings resistant to full subjugation. In later events, he attended a conference within the Garden of Whispers alongside other Primogenitors, authorizing an attack on Itogami Island following Dimitrie Vatler's uncovering of secrets regarding "The Cleansing." He later appeared at an airport en route to Itogami Island with Zana Lashka, briefly evading Veres Aladar's forces. During conflicts on the island, he intervened to protect domains, demonstrating his unique ability to manipulate magic flow. In the final story arcs, he continued upholding the principles of the Holy Ground Treaty, indirectly supporting protagonists during crises. His abilities encompass standard vampiric traits like enhanced strength, speed, and immortality, amplified to exceptional levels due to his status. He commands 72 beast vassals, including the catastrophic "Parhelion," manifested as a colossal wolf capable of devouring stars. His signature power is "Magic Mute," nullifying opposing magic by colliding demonic energy with the target's spells, effectively canceling and resetting their effects—a technique unmatched by modern sorcery.