Ark Fortress technician Gu Yuan's job is to filter the truth for the upper levels and weave comfort for the lower levels. When he saw Lin Wan breaking into the restricted area on the surveillance camera, the entire carefully decorated world began to become distorted. One of them comes from inside the information cocoon, and the other comes from the edge of the wasteland. They can only work together to uncover the hypocritical shell of the fortress civilization.