Entering the Demonic Path with a Lantern

This book is also known as The Eternal Night: A Lantern-Bearer's Fall into Evil.

The Lantern Bearers of the Night Patrol are ordered to inspect the darkness. Their lanterns reveal the darkness in people's hearts and the lairs of demons, and they burn the spirits of monsters as fuel. After Li transmigrates here, he discovers that his lantern is actually a Catalog of Strange Flames. The more strange flames from monsters he collects, the stronger it becomes. By day, he's a loyal hound of the imperial court, investigating cases and confiscating property. By night, he's the King of Hell, burning demons and refining monsters. Only when he lights the lantern's 108th strange flame does he discover that this world is a prison for ancient demons, and his lantern is both key and shackle.

Golden finger: A lantern containing a Catalog of Strange Flames, which absorbs the life-fire of monsters and demons to unlock abilities.

World setting: A world reminiscent of the Ming dynasty, where the nights are long and monsters and demons are everywhere. The Demon Suppression Bureau, sects, and vassal princes all vie for power.