From the Start, I Build Beast Soldiers at a Hundredfold Rate to Forge the Supreme Immortal Qin

Historical what-if, history, System, Great Qin, hundredfold, beast souls, transmigration. He transmigrates to the Qin dynasty and thinks he is doomed, but then activates the System. To his surprise, he can extract the abilities of beasts and use them himself. Not enough stamina? Just take a warhorse’s attributes and fuse them with your own. You say my soldiers aren’t strong enough? What nonsense. Ever heard of elephants, lions, and tigers? Fuse with a cat’s talents, and the ultimate assassin is born. By chance, the First Emperor returns from his fourth tour of the empire, his body already at its limit and death seemingly near. But then the protagonist fuses him with the physique of a grassland lion, and from that point on, everything changes.