Beast Taming: Infinite Simulations, and Star Behemoths Are Within Reach

Beast Taming + Simulation + No Female Lead + Two Worlds + Half-Immortal Cultivation System Xing Yu is a transmigrator. As in the classic setup, both his parents are dead. To make matters worse, he has brain cancer. Just as he is about to die, he awakens a simulator System that can send his spirit beasts to other vast worlds to cultivate. This gives Xing Yu, who had only awakened a C+-rank Little Rock Dragon, a chance to turn his life around. As Little Rock Dragon achieves greater and greater things in the simulator, Xing Yu makes pacts with other spirit companions too: a jellyfish with Kunpeng bloodline, a little lion with Nihuang bloodline... Eventually, as these spirit companions achieve more and more in the simulator, they even discover the world Xing Yu lives in. When Xing Yu turns around again, the spirit beasts that should still be in the simulation have already fought their way back, smiling at him.