Jia Lei, the protagonist, uses the [Myriad Worlds Fishing System] to make a difficult start in a courtyard compound where supplies are scarce and human nature is complicated. By fishing, he obtains resources, knowledge, and technology. Combining his own ingenuity with the System's ability to develop scientific theories, he starts by solving basic needs like food and shelter and treating illnesses, then gradually develops technological breakthroughs and medical treatments far ahead of their time. As he makes outstanding contributions to the nation's technological rise and public health, he changes his own fate, exposes and punishes the various scoundrels in the courtyard, and eventually leaves the compound to become a scientific giant and a statesman of unmatched distinction, whose work shapes the nation's destiny.
