A man travels through time and becomes a live-in son-in-law of the Lowell family. He's saddled with a massive debt of two thousand yuan and faces ridicule, branded as a 'freeloader'. He finds his breakthrough with ignored Golden Cicadas, processing them into a specialty snack to sell. In three days, he pays off his debt, puts the villains in their place, and establishes a Golden Cicada co-op to lead the villagers to wealth!