A thousand years ago, under the blood moon, spatial rifts opened, heralding the era of monsters! Countless monsters rampaged across the globe! Just as humanity was on the brink of complete extinction, the emergence of “Beast Spirit Masters” brought a glimmer of hope to all of humanity! With generations of inheritance and the development of “Beast Spirit Masters”, humanity successfully created a new civilizational order to combat the monster invasion! Lin Yuan, who was a top assassin in his previous life but was tragically betrayed and killed by his organization, transmigrates…