In a future city where memories can be read, modified and deleted, Lin Mo, the top memory adjuster, is a man who has forgotten his past. He can sneak into the deepest consciousness of anyone, repair broken emotions, and erase the marks of pain, but he can only illuminate the white fog in his heart. A mysterious commission brought Zero, a girl with pure consciousness, to him. Her memory is an isolated island that cannot be landed on, but it unexpectedly reflects the fragments of Lin Mo's forgotten past. In order to solve the mystery of the girl, and to find himself, Lin Mo embarked on a huge conspiracy woven by memories, and in the vast ocean called oblivion, he tried to uncover the truth that was about to be completely submerged.