DoDo is the “Soul Guard” in this mobile game. Once upon a time, DoDo released all of the souls from Hades accidentally. Therefore, he travel around the world to be responsible for catching them back. There are five areas in this game which are America, Europe, Egypt, China and Japan. Through the scenes, players will realize various region culture indirectly. Players have to collect some objects about local culture, and they can use DoDo’s power to change the scenes of Yin and Yang to break through obstacles and catch the souls. Finally, while players are enjoying the game, they learn various features culture.