Loneliness, survival, existential crisis, the evolution of human nature in extreme environments, the boundary between memory and reality? Chen Yang: 28 years old, an ordinary city IT operation and maintenance engineer. He is introverted, slightly sociophobic, but has clear logic, strong hands-on ability, and basic survival knowledge (derived from his hobby of watching wilderness survival programs and online materials). Before the disaster, he was feeling confused due to work pressure and alienation from interpersonal relationships. His mobile phone contains photos with his family, ex-girlfriends and a few friends. These are his only remaining emotional connections to the "past world".
