In the "New Guguang City" where memories can be quantified, stored and deleted, No. 0 Is a top "memory scavenger". He clears trauma and repairs memories for clients, but his own past is a blank. During a routine mission, he accidentally captured a memory fragment that belonged to no one - a lighthouse, waves and a vague laughter. This "ghost data" caused waves in his dead consciousness, and also attracted the scrutiny of his mysterious boss "Yi". In order to find the answer to "who am I", Zero embarked on a dangerous journey against the current. In this sea of oblivion composed of data, is he a hunter looking for the truth, or is he a prey that has already been marked?
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