The invincible female ghost is a bit love-struck.

Lu Yuan transmigrated to a bizarre world and became a novice Taoist priest. Thanks to the system [Exorcising Demons], he gained some fame in the border region. One day, while searching for a living, he came across a lonely grave. Lu Yuan went up and glanced at it. "Died at twenty, what a waste. Here, light some incense..." From then on, Lu Yuan was haunted by a vengeful female ghost...