Lin Feng unexpectedly unlocks the spirit water modification system, which not only revitalizes the reservoir's water system and breeds high-quality wild giant fish, but also unexpectedly awakens Xiao Qi, a loyal earth dog that can speak. To protect the family business, Lin Feng innovates fishing rules, becomes wildly popular across the internet with his primitive ecological giant-fish black pit, and attracts numerous fishing enthusiasts to experience it. Facing malicious suppression, skepticism from peers, and various crises head-on, he adheres to the bottom line of integrity, resolves wave after wave of disturbances with wisdom and system abilities, and while guarding his home, transforms the ordinary reservoir into a well-known fishing holy land.