In the future urban "New Orphan" where memories can be extracted, traded, and even erased, Lin Mo, a top memory restorer, makes a living by repairing other people's broken memories, but he can't find a key piece of his lost past. A mysterious commission draws him into the whirlpool: a powerful lady brings an undecipherable memory fragment full of violence and sadness. During the repair process, Lin Mo was horrified to discover that this memory was inextricably linked to his lost past. In order to explore the truth, he must dive into the abyss of memory and salvage his own island in the ocean of forgetfulness by countless people.