Humanity around the world has been dragged into the abyss of the sea by unknown forces. A vast darkness echoes with crazy whispers, and a sea of oblivion inhabited by unknown shadows. There is no surface here, only endless seas.
Each person has an initial submarine bound to them, with different shapes.
There are those purely technologically modified: technological submarines, and those similar to marine life: biological submarines.
No matter what type of submarine, the pilot has the absolute right to independently upgrade the direction during the journey, whether it is to use powerful technological transformation, or to modify the mutated limbs of powerful creatures... All are compatible.
Yang Chen's initial submarine was a clownfish mutant, with a squishy start and lack of oxygen.
During the first crisis of time travel, Yang Chen burst out with a strong desire to survive and challenged the unknown.
Until he awakens the talent tree and can integrate mysterious power to transform the submarine, step by step transforming into an overlord that makes even the shadows of the abyss tremble...
Undersea survival + gram distortion + technological biological submarine transformation + talent evolution + team building