The story takes place in a world of immortality where memory is the foundation and forgetfulness is the disaster. The protagonist Cao Guoqiang is a 33-year-old restorer of ancient books on Earth. Due to an accident, his consciousness was involved in the "Void Gate" and was involved in the "Xuanhuang Small World" that was about to collapse due to the "Great Tide of Forgetfulness". He has the mission of saving this world. As a "visitor from another world", starting from the "first appearance of awareness", he embarks on a unique path of memory and immortality. In the process of practicing "Xuanhuang Song of Creation" and comprehending "Ancient Wuji Boxing Code", he met "Bai Ling", a demon girl who aspired to "equality of all living beings", and also encountered "Yun Wuyue", a Taoist companion who was destined to contradict him in order to prove that "the Supreme Being Forgets Love". Not only does he have to face the oppression of the demon sage "Split the Sky" who believes in "the weak eat the strong", but he also has to go deep into the three realms and six realms, climb the tree of memory, collect the scattered "origins of memory", and fight against the forgetfulness of the world. In the end, Cao Guoqiang did not choose destruction or absolute control. Instead, he used "enlightenment" and "innovation" to compose "The Book of Recalling the Sea of Freedom" that transcends reincarnation at the "annual rings" of the tree of memory. He sublimated the collapsed small world into a "pure land of memory" attached to the main world. He himself reached the realm of "eternal freedom" and found new possibilities for the survival of all things. ",
