I'm a Hidden Expert, but I Don't Want Anyone to Know

Decent people won't enjoy this book.

Indecent people won't find anyone more indecent than this book.

Transmigration, immortality, lucky draws.

A king of ten thousand demons transmigrates from the modern world into the Primordial Era with a System.

When the gods left, they sealed themselves away and lived on into the present day.

They became the opportunities that everyone in this era could encounter.

His favorite thing to do is drink coffee in the thatched hut gifted by the System.

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