Jiang Haisheng, invited by the village chief, goes to young mother Xu Chunlan's home to team up and help out. The very day he enters the door, he encounters creditors collecting debts. He promises to pay them back in three days, earning money to repay debts by his beachcombing skills, and together with Chunlan sets up a stall to sell goods, opening up sales channels. The two go from selling seafood on behalf of others to jointly running a cooperative, and then to contracting fish ponds to learn fish farming, supporting each other despite losses and storms. As days gradually stabilize, Haisheng sincerely proposes to marry Chunlan, and Manman's full-voiced "Dad" finally makes the three of them a family.