The System Told Me to Be a Guide

The protagonist is a corpse makeup artist at a funeral home. An accident gives him a bizarre System, bringing him into contact with many supernatural cases. Instant spells, a lightning-fast peachwood sword, real paranormal events, plot twists, logical deduction, and genuine human emotions all feature in the story. The protagonist is not invincible. In the end, he becomes an underworld guide, takes charge of the Book of Life and Death, and resurrects those who sacrificed themselves for the love and compassion of the human world.