The Fated Underworld I Built Was Exposed by My Little Sister

Ghosts and monsters run rampant in this world, and humanity is on the brink of disaster.

Gu Jinran transmigrates here and awakens the Underworld System. With his own strength, he establishes the Heavenly Mandate Underworld!

He cowes countless ghosts and monsters, defending the human world through its trials!

But one day, he accidentally leaves Black Impermanence's ghost robe at home.

His younger sister, Gu Meng, happens to take it for a cosplay outfit and wears it to the school festival.

And then...

Evil spirits run amok during the festival!

The Black Impermanence robe worn by his sister, Gu Meng, begins to move!

"Peace under heaven!"

"Impermanence claims lives, and all ghosts are dragged to the underworld!"

"I am Black Impermanence. By order of the law, no sinner shall be spared!"

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.