Core setting: Open a "B&B" on the beach, take guests to the sea to pick up seafood (such as digging clams, fishing for crabs), and make money with "B&B + experience".
Plot summary:
1. Entering the industry (10,000-150,000): Rented a fisherman's old house and converted it into a B&B. For the first time, he took a guest to the sea and picked up 10 kilograms of clams, which was well received;
2. Development (160,000-400,000): Add "seafood processing" services (use the picked seafood to make soup), and gradually develop "parent-child sea camps";
3. Climax (410,000-500,000): Stop "polluting companies" from discharging sewage into the sea and report them using "videos of all guests rushing to the sea".