Fortune Comes to the Riverside: The Toad's Gratitude tells the story of how impoverished fisherman Zhou Dajiang and his family accidentally save a century-old ice-jade toad, and how their destiny quietly changes from that moment on. Time and again, Lord Toad guides the Zhou family in catching fish, avoiding danger, and overcoming hardships. Relying on his diligence and wit, Zhou Dajiang works his way up from selling fresh river food to making dried salted fish and fish paste, gradually building up a small business. Facing the harassment and revenge of Du Wankui and others, the family never bows their heads, ultimately guarding their family fortune and welcoming their own good days.