Chen Yi was pulled into the "Nightmare World" by a mysterious force and forced to participate in a cruel elimination game of "The Last One is King". This place is full of monsters and strange scenery, and death is the norm. Chen Yi discovers that he owns a mysterious cabin that can grow. He must use the resources obtained from each life and death trial to develop the simple shelter into a survival base under the multiple threats of the blood moon, monster tides, and human competitors, and eventually build the only city-state for mankind in the nightmare world.