I'll Just Go to Sea, and You'll Chase Me in a Nuclear Submarine?

"Hey, Border Guard? I went to sea and dug up a spy device." Du Yuesheng, who has unlocked the strongest sea-catching system, goes from sea-catching to diving. There are no big products, but there are some weird things emerging one after another. A terrain detector that looks like a crab. A sea area detector like a shark. There are also undisguised torpedoes. Until the end, Sakurajima drove a nuclear submarine to this sea area: "I want to see who captured so many props of our army!" At that time, Du Yuesheng was driving a strategic-level fishing boat and said, "I'm just going to the sea. Are you going to chase me in a nuclear submarine?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.