In the future urban "Mirror City" composed of holographic mirrors, every citizen's memory is accurately managed by the "Eternal Core" system. The man code-named 734 unexpectedly woke up after a "memory reset", with fragments of fragments that did not belong to him remaining in his mind. In order to find the proof that "I" is "I", he embarked on the road of escape. Before being "purified" by the system, he must join hands with a mysterious female hacker to decipher the huge conspiracy woven by implanted memories and retrieve his true identity and the truth about the world buried under the abyss of data.
