Linaris the Obsidian, also known as Kokuyou Linaris, is a vampire and the current leader of the Obsidian Eyes spy guild in the world of Ishura. She inherited the position from her father, Rehart the Obsidian, and is determined to restore the guild to its former prominence. Her background is rooted in the guild’s decline following the death of the demon king; former members who had no skills outside combat and espionage struggled to reintegrate into society, and Linaris took it upon herself to reunite and rebuild them. Her primary motivation is to spark a new era of war and conflict, believing that chaos will allow the Obsidian Eyes to flourish once again. She lives in a large mansion deep within a forest, where she orchestrates her plans from the shadows. Despite being born with a frail constitution, her vampiric abilities are exceptionally dangerous. Unlike typical vampires, she can infect others through the air rather than requiring direct blood contact, making her both highly contagious and deadly. She also employs Corpse Golems as extensions of herself to gather intelligence and execute her orders, allowing her to remain hidden while controlling operations. As a result, she acts as the guild’s central brain and its most effective scout. Linaris appears as a supporting figure in the story, influencing events through espionage and manipulation rather than direct confrontation. Key relationships include her deceased father and the fluid membership of the Obsidian Eyes, which she leads with a pragmatic and ambitious mindset. Her development centers on her efforts to revive her organization and navigate the power struggles among the shuras, the superhuman champions who now dominate the world.