The Red Rose of Gods and Ghosts

Do you believe it?

There are guardian gods in this world.

But the Divine Pact Book has never chosen an immortal from the Underworld to become humanity's guardian god. That is, until 17 years ago, when the first Divine Pact Book belonging to the Underworld in millions of years appeared beneath the great peach tree at the Ghost Gate.

Now, 17 years later, the ghost gods have discovered that this Divine Pact Book, and the boy named Chang Kong recorded within it, may not be so simple...

The Underworld's [Walkers] organization, the mysterious [749 Bureau] in the human world... What secrets are hidden on the other side of this world? Can they withstand the legendary [Heavenly Calamity: The Rebellion of the Betrayer Gods]?