Serving as a castle knight isn't as gratifying as Axel envisioned. When not enduring torment from the other guards, he is exasperating the very nobles he swore an oath to protect, and he can't help resenting what his life has become. Filled with bitterness about his past, he finds himself unable to break free from the repetitive patterns that lead to the same tired outcomes. However, everything changes when he witnesses the execution of a mysterious alchemist. Determined to escape the oppressive confines of his miserable life, Axel becomes obsessed with mastering the art of gold transmutation. Unsatisfied with his job and plagued by repeated failures in his relationships, he embarks on a quest to locate the last known alchemist, who vanished more than a century ago. In his reckless pursuit, Axel risks life and honor to learn the secrets of alchemy and find true happiness by awakening to a new way of living.