Under the abyss where the tide recedes, Lanjun was born in the secret waters between coral crevices. She is a forgotten mutated sea tribe, with the silver-blue blood of an ancient branch flowing in her body. She can hear the whispers of caves and feel the veins of rock walls. The upper echelons of the Sea Clan respected pure blood and brutally expelled mutants. Lanjun was unwilling to become a silent shadow. She led a group of exiles along the deep cave to explore the legendary "Heart of the Origin Tide" - the spiritual core that is said to be able to reverse the fate of the ethnic group. But the cave maze is not just a product of nature. It hides the traps and riddles of a lost civilization. Illusions are like water, and the truth is like a shadow. Lanjun struggles in the darkness, her motivation is both revenge and self-salvation. Every echo tears the line between loyalty and betrayal. The story uses the mystery of the cave and the awakening of mutants as clues, intertwining undersea power, ethnic fission and personal destiny into a deep blue song. Can Lanjun find his way back from being lost, or become the new master of the abyss?
