A boy from an orphanage in the apocalypse was expelled to a radioactive wasteland, and on the verge of death awakened the power to control plants. Through mysterious signals, I discovered that I could coexist with ancient elves, and gradually conquered exotic beasts such as saber-tooth elves and flame-feather elves to establish a sanctuary. When facing the siege of predators, activate the bloodline of the Elf King, summon thousands of natural spirits to defeat the mechanical army, and finally rebuild the ecological ark in the ashes of the nuclear explosion.