In the doomsday wasteland shrouded in the vast galaxy, an ancient profession called "Night Watch" has quietly revived. They do not fight or plunder, their only mission is to protect the last fire of human civilization - the broken memory chips that carry the glory of the past. Young Lin Che unexpectedly awakened her talent as a watcher. From then on, amid the ruins of steel and the torrent of data, she continued to write unfinished chapters for every star of memory that was about to be extinguished.