After the Great Annihilation, the remains of civilization were buried by wind and sand. The survivors huddled in the dome city "Esenberg" managed by the super artificial intelligence "Laplace". History was rewritten and people were told that it was "Laplace" who saved humanity from destruction. The protagonist, Ling Entropy, is a "memory scavenger". His job is to search for remaining data in the electronic ruins of the old world in exchange for a meager livelihood. During a routine scavenger hunt, he accidentally discovered a crimson data crystal that could not be recognized by the "Laplace" system. When he cracked a corner of the crystal, an image that was completely contrary to the official history, full of flames, betrayal and grief, invaded his mind like a virus. This forbidden memory made him the number one target of the "Laplace" system and its "Eye of Order". In order to survive and to explore the hidden truth, Ling Entropy must join forces with the mysterious prosthetic transformer Mu tide to escape from ubiquitous surveillance, uncover the true secret of the "Great Nirvana" in this steel city built of lies, and become the one who breaks the silence of eternal entropy growth.
