Countless “spacetime rifts” exist in the universe. These rifts are not portals for transmigration, but “memory-fragment zones” left behind after different civilizations perished. Within them float the civilization’s technological relics, cultural symbols, and even fragments of consciousness imbued with emotion. The protagonist is Earth’s only “spacetime restorer.” His duty is not to transmigrate through the rifts, but to enter them and salvage the fragments, repairing and piecing them together to restore complete civilization records. He then sends those records into space through “civilization anchors” to prevent these civilizations from vanishing forever.
But lurking within the rifts are “Devourers,” monsters formed from the negative emotions left behind when civilizations fell, such as war, despair, and greed. They attack restorers and even try to seep through the rifts into the real world. The protagonist’s mission is not only to archive civilizations, but also to purify the negative energy within the rifts and stop the Devourers from escaping.