Su Xiaoye, an ordinary traveler, unexpectedly became the fourth vampire progenitor of the mysterious vampire world during his journey in Western Europe. Since then, his life has undergone earth-shaking changes. Food lost its taste, dishes no longer smelled delicious, and instead, he developed an irresistible urge for bloodsucking. Even more amazingly, legendary creatures such as the Midgard Serpent, the Kraken, the Phoenix, the Tree of Life, and Fenrir the Giant Wolf have all become his vassals, obeying his summons. However, this power did not come without a price. The Holy Church of Light relentlessly hunted him down, and the other three vampire progenitors harbored deep hatred towards him. Facing such a predicament, Su Xiaoye must quickly adapt to his new identity, master his own power, and engage in a battle of wits with his enemies. He must learn to seek light in the darkness, survive amidst the chase, and maintain rationality amidst hatred. This struggle for survival and power will test Su Xiaoye's courage and wisdom, and also reveal his true nature.