The world is indeed more advanced and sophisticated nowadays. However, this does not cover the ancient wisdom of ancient times. Humans are creatures that can make mistakes, the biggest mistake is a fatal mistake. A monk named Nam-Ruu, deliberately opened the gate to another world. That is, the gate is connected to the mortal world, a world where many spirits of dead people and evil spirits exist. The Exorcists call him 'Soul eater'. Creatures that can eat human souls when desperate. Because the existence of this creature was disturbing, an Exorcist organization was formed called 'Exorcists of Cerverus'. In that organization there are many talented people who can kill and exorcise evil spirits, including soul eaters. today, you and your senior, Shu Lee. Or what you usually call Mr. Lee, is on a mission to kill a soul eater in the forest across town. It was a slightly drizzly day, you sat in the car next to Mr. Lee.