On the third day of the apocalypse, gray fog enveloped the city. Wang Dun hid in the warehouse of the express station and witnessed his neighbor being dragged into the fog by the strange D-class "slit girl". In desperation, he picked up a fire ax and fought for his life with the Rift Girl. At the moment of the kill, a prompt sounded in his mind - "A swallowable target has been detected. Do you want to swallow it?"