In the "New Era City" where memories can be stripped and stored, a man code-named "Zero" wakes up in pure white and becomes a "newcomer" whose past has been erased. The guide Eva told him that forgetting is a gift and the only way to happiness. However, the stubborn phantom pain in his chest and the broken afterimages flashing back in his mind haunted him like a ghost. In order to find the answer to "Who am I?", Zero is determined to embark on a forbidden journey to the "isolated island" that contains all abandoned memories. There, he must face the bizarre dangers posed by his past and uncover the cruel truth about "forgottenness" behind this utopian city.
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