Submarine from the Old Days: My Nation Has My Back

In the lightless depths of the ocean, Shen Ping'an has only one thing to rely on: a submarine sunken on the seafloor.

Fortunately, Shen Ping'an still has support from his hometown, so he won't be trapped forever inside this iron coffin.

But in the deep sea outside the submarine, all kinds of terrifying giant beasts roam, while some cunning little monsters are trying to sneak aboard.

This place is full of danger.

Meanwhile, things aren't going well back in Shen Ping'an's hometown either.

Ever since Shen Ping'an transmigrated, a world-spanning downpour has never let up...

To survive, Shen Ping'an can only repair the submarine, fight the deep-sea monsters, and investigate the secret behind the endless rain in his hometown.

Until the rain in his hometown stops, until the submarine finally surfaces.