In the next ten years, human exploration of the deep sea will advance rapidly, but in the deepest part of the Mariana Trench, we will encounter a "silent zone" that cannot be explained by science - all sound waves and signals are annihilated here, and only a piece of ancient oriental music music will periodically echo. The United Nations secretly launched the "Lingtao" project, offering a sky-high reward, and recruiting experts from around the world who can decipher this "abyss echo".
Lin Zhan, a former acoustic engineer who was forced to change careers due to the cold winter in the industry and was on the verge of collapse due to huge family debt, stepped into this dangerous game for the bounty. Relying on his family's guqin music theory and absolute sense of tone, he became the only person who could play and stabilize this "Spiritual Music". But he soon discovered that what he was playing was not the melody, but the coordinates and keys. Under the deep sea, there is not a geological seabed, but a "ruin sea" attached to the real dimension - a foreign cemetery where the dead civilizations of the past dynasties are deposited. Overactive modern sonar has cut through the fragile barrier between the two worlds like a knife.
What's even more fatal is that his successful "translation" not only attracted the greedy prying eyes of capital, but also awakened the ancient existence in the market that regards human civilization as a "seasonal crop". At the same time, the family's dusty secret was revealed: his grandfather, a legendary luthier, was actually the "gatekeeper" who took the initiative to close the passage in the previous generation.
As a result, an adventure related to survival suddenly escalated. Lin Zhan must deal with the coercion of capital, official surveillance, the fate of his family, and the temptation of whispers in the deep sea. He is no longer just burdened with debt, but must make a choice: whether to inherit his grandfather's legacy or not.
