At the end of the world, the remains of civilization float in the sea of worlds like afterimages. The ancient order and the records of lost observers are intertwined in the cracks of time. Gu Changye, a trace seeker who is accustomed to calculating value, is connected with Bai Li, Jiang Wanzhao, Shen Guanxing, Du Chen, and Xie Wushu by a chain of fate, and together they travel through the eradicated civilization and the ruins of the end. Under the warning of the Watcher, they opened the fifth key and faced the lurking Source Sequence - the ancient existence beyond the end.
From the city of ruins to the ruins of the stars, from the shadow of the ruins to the sea of all realms, and then beyond the end, they have experienced countless tests: exploring the erased history, facing the shadow of failed observers, and resisting the black tide that swallows the order. The final battle is not only a collision of forces, but also a game of rules and will. The cooperation, trust and choice of the six people affect the future of the world.
In the end, Gu Changye refused to become the only order and chose to let all living beings continue to have imperfect freedom. He has grown from a tracer looking for answers to a guide protecting freedom. In the realms where light and shadow intersect, what finally comes is the breath of free will, rather than an arranged order.
This is an epic about ruins, order and freedom, as well as a legend about the choices and sacrifices of six people. Every choice is writing the future of the world.
Intent: The true order is not to allow everyone to have the same answer, but to allow everyone to have the freedom to choose the answer.