In a world of Familiar Taming, Max was betrayed by his family, who stole his rare Obsidian Kirin and drained his blood as a living sacrifice. Reborn with the Divine Familiar System, Max seeks revenge. He sells the disloyal Obsidian Kirin and buys the dying Divine Vermilion Bird. With the system's guidance, he rises to become the ultimate beast master, step by step, determined to take back his power and dominate the world of familiars.