Humanity's final sanctuary teeters on collapse as Demonic Beasts ravage the world. Beast Tamers emerged as the last line of defense, wielding Beast Taming Seals to enslave these monstrosities and reclaim territory from the encroaching darkness. They stand as humanity's sole hope—the powerful individuals who turned the tide of extinction into survival. Ray, an ordinary man juggling three jobs, dies in his original world only to awaken in this brutal reality. Thrust into the Beast Tamer Trial without warning, his second chance at life hinges on a single test: pass and ascend to elite status, or fail and inherit the broken existence of his predecessor, condemned to suffer until death claims him. Fortune smiles on the transmigrated Ray with an unexpected blessing. [The Strongest Beast Taming System has been integrated into your soul!] [First Beast Tamed: King of Slimes—acquired!] [Skill and EXP Sharing Protocol—activated!] [All tamed beast abilities are now accessible to you.] [Each creature slain by your beasts grants you experience toward ascension.] While aspiring Beast Tamers struggled to catalyze their beasts' evolution, Ray's power skyrocketed through relentless advancement. His unusual system transformed the impossible into the inevitable, propelling him toward dominion over SSS-rank beasts and the romantic entanglements that follow in a world reborn through conquest and companionship.