Guarding the Demon Prison for Three Hundred Years, I Am Invincible

Demons and monsters run rampant, and evil spirits roam the land.

Upon waking, Lin Feng is dismayed to discover that he has arrived in this world that devours people.

Worse still, he has become a prison guard tasked with watching over the Demon Prison, and could lose his life at any moment.

Everything changed when it appeared.

"Suppress and kill the Ten-Thousand-Poison Heavenly Serpent of the Bitter Sea Realm. Reward: one divine tempering, a Nine-Revolution Life-Restoring Pill, and the Immortal Artifact, Exquisite Heavenly Pagoda."

"Suppress and kill the Eight-Tailed Heavenly Fox of the Other Shore Realm. Reward: Immortal Art, Universe in the Sleeve."

…

Three hundred years have passed in a flash. The demons and monsters have shattered mountains and rivers, and now they march straight for the capital.

Three hundred years have passed in a flash. I am invincible.

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.