In 2025, the Shenzhen-Zhongshan Channel Project disturbed the seabed of the Pearl River Estuary, awakening the "coral tears" of the Japanese military's sealed capsule in World War II, and mutated luminous algae triggered a "ghost red tide" that swallowed the bridge piers. Hai Kui, a descendant of the Dan people and a doctor of molecular anthropology, can read the genetic memory by touching the ship wood. From the skeletons in the ship grave exposed by the project, she got a glimpse of the secret history of Yagu using algae poison to fight back the Japanese army in 1943.
Haikui's biological father, infrastructure tycoon Chen Yuan, started sonic algae killing to protect the project, but he didn't know that this would endanger the people living in symbiosis with the algae. Cross-border environmental leader Lu Jun (a modified person implanted with artificial gills) intercepted a sample of "Coral Tears" and discovered that it was actually a living weapon modified by Mute Gu's DNA. As the investigation deepened, the truth emerged in 1943: Yagu was forced to secretly plant toxin genes when cultivating luminous algae for the Japanese army, and civilians used sunken ships to seal the poisonous algae to form ship graves.
The modern crisis is intensifying: a genetic map appears in the palm of the sea anemone pointing to the antidote, Lu Jun's artificial gills were implanted with a virus by Chen Yuan, and the Symbiodinium consciousness appears in the red tide. Chen Yuan even discovered that his seawater allergy stemmed from his birth as an abandoned baby by the Dan people. When the red tide engulfed Shenzhen Bay, Haikui led the people to build a biological computer using boat coffins, and Lu Jun jumped into the algae colony to upload the neutralizer gene as a sacrifice.
In the end, the shipyard was transformed into the "Bone Boat Island", a refuge in 2079. Chen Yuan's bones gave birth to fluorescent corals, and Lu Jun's consciousness was integrated into the ocean's neural network, achieving reconciliation and symbiosis between the sea and the land.
