Deep-Sea Hunt: My Submarine Can Upgrade Its Nuclear Missiles

2025, the Bermuda Triangle

The conventionally powered submarine Great Wall 19 encountered a bizarre storm during its farewell performance at the World Submarine Championship. When the storm subsided, the horrified sonar operator discovered that they were floating in the East China Sea in 1937.

Captain Tie Liang unlocked the mysterious System aboard the submarine:

Sink a cargo ship and receive a supply of American canned food.

Destroy an enemy warship and the submarine undergoes an unbelievable leap in technology.

Ultimate goal: Evolve this aging conventional submarine into a Type 096 strategic nuclear submarine.

“Since our era has no navy...” Tie Liang wrote in the logbook, “then we’ll make every navy in the world disappear.”