Beyond the Door

C-Class Esper Kim Daemun possesses the special ability to connect spaces, but is treated like a half-wit due to his low rank. Kim Daemun, living a life no different from a slave to the Association, had people who reached out to him… S-Class Guide Lee Geon and his sister, A-Class Guide Lee Ji-eon. However, Lee Ji-eon dies after being caught in an Overpool when a dungeon collapses, and Lee Geon, his only savior, is also in danger of dying in another Overpool. In a crisis where everyone is about to be annihilated, Kim Daemun barely manages to escape with Lee Geon and his partner, but is in danger of dying as a price. However, at the moment of desperation, Kim Daemun opens another door that he ...