“Spirit Masters” are warriors who borrow the power of contracted spirits to fight. Rork, a second-year student at the Spirit Master training institution, Utrea Academy, had risen to second place in his grade—yet had never once summoned a contracted spirit. This earned him a reputation for “hiding his true power.” But the truth was… “Why don’t I summon my contracted spirit? Because I don’t have one!” Yes—he had no contracted spirit at all, and instead had been desperately honing his swordsmanship and martial arts to survive in battle…!