The story in River King: A Wonderful Journey takes players into a world of fishing and nature exploration. In this game, players take on the role of a young boy or girl (depending on the player's choice) who must travel to a river to find something that can save their sick parents. Along the way, players will encounter various characters with interesting backstories and personal quests. Fishing plays a crucial role in the journey and story progression. Players must catch different types of fish to gather resources that will help save their parents, as well as improve their fishing skills and build relationships with other characters they meet along the way. The game offers a gameplay experience that blends fishing, exploration, and interacting with characters, providing players with a rich adventure in a natural world filled with diverse experiences.