Triple Fusion: Rise of the Apex Tamer by Autumn Shepherd

Rifts to hostile realms are opening across Blue Star, unleashing invaders from worlds beyond. Humanity’s survival now depends on the Awakened—men and women whose classes grant them the power to defend civilization and reshape the world’s balance of power. During his class awakening, Wang Chen becomes a Colossal Beast Tamer and receives three divine-grade talents. The most outrageous of them is Triple Fusion: by combining three beasts of the same species, he can force them directly into their ultimate evolutionary form, ignoring the restrictions that bind every other tamer. Three bottom-tier Frost Lizards become a mighty Frost Dragon. Three unremarkable white foxes become a legendary Nine-Tailed Celestial Fox. And three succubi? Well…some experiments are better left unexplained. What matters is that they produce a breathtaking Succubus Princess. While other tamers struggle with bloodlines, resources, and years of cultivation, Wang Chen begins assembling an army of creatures that should never have existed. By the time the countless realms recognize the threat, the man they dismissed as a mere beast tamer has already become a power that no army—and perhaps no god—can stop.