Demon Suppressor: I Guarded the Eerie Containment Facility for a Hundred Years

After a century guarding the world, alone in a courtyard, why has he neither aged nor died, and why can no ghost harm him?

An ambush on a rainy night sends a forbidden ghost box to a remote containment facility, shattering the peace for good.

Uncanny beings erupt into chaos again and again, ghost organizations close in to hunt him down, and the Central Ghost-Guarding Bureau hides a conspiracy. What secrets lie in his sealed-away past?

When a forbidden-level ghost shadow awakens and catastrophe engulfs the human world, can this ghost guardian, forgotten by the world, suppress ten thousand ghosts with a single slash and protect the last hearth of humanity?