A disaster called the 'Red Mist' came without warning and swallowed up the order of the old world. Cities are reduced to ruins, monsters roar in the shadows, and humanity becomes more terrifying than monsters in the face of scarce resources. Gu Yuanshanxing, an ordinary city engineer, relied on a little preparation before the disaster and extraordinary calmness to survive in the apocalypse. His only obsession is to find his sister who was separated in the disaster. In order to pursue clues about the 'Ark' refuge where his sister might go, he embarked on a dangerous journey through the wasteland. On this road, he will face twisted monsters, unpredictable human hearts, and the secret about the end of the world hidden by the "red mist".
