phenomen a book

The otherworld portals descended onto Earth, bringing in monsters, treasures, and mysterious realms for humans to explore. Rankers, humans with awakened geist, explored the otherworld realms using magic while the regular humans stayed within the safe zone to deal with the usual real world problems like nagging parents and bureaucrats. Geared with a craft system that doesn''''t provide any physical item, Ian must unravel the mystery surrounding the unexplained deaths within the real world.