【A new work from the author of \'Way of the Devil\'!】The outside world is?filled with monstrous shadows. I’m so?scared.I?just want to?stay in?my?safe house, forever……Unkillable phantoms and endless monsters abound. Yu?Hong arrives here with a?mysterious black mark. Using its power to?strengthen everything, he?gradually builds an?absolutely secure zone of?his own within his safe house. Alternate World Apocalypse Average-looking Protagonist Body Tempering Cannibalism Cautious Protagonist Character Growth Dark Evolution Fast Learner Ghosts Male Protagonist Monsters Mutated Creatures No Romance Not Harem Ruthless Protagonist Schemes And Conspiracies Special Abilities Survival Transmigration Transported to Another World Weak to Strong