Drastic changes in global climate have rendered most areas uninhabitable. The survivors are trapped in an ever-changing extreme boundary. They cooperate and conflict to find survival resources, cope with disasters, and crack the cracks within the team. The protagonist Xu Lang leads a "laughing group of survivors" with different personalities, using wit and humor to face the cruel environment. The three volumes of stories unfold different survival challenges - environmental deterioration, invasion of others, and ultimately competition for external resources - each volume is under the main line of survival battles, interspersed with character growth, relationship collisions, and laughter. The overall rhythm is tight, with climaxes one after another, and finally everyone rushes to new hope together.
