To solve theblack dust that suddenly appearedIt is a game that grows little by little while finding the cause and proceeding with the quest.Difficulty can be difficult if the environment is polluted or too wasteful.Will you be able to complete the mission until the end? You??-Stage: 7 in total (field, mountain, river, desert, city, factory, hidden place)-Cast: Water chestnut, midnight, thin chestnut-Content: Finding various causes of environmental pollution and implementing solutions Linked to the content of social studies units in the 5th and 6th grades-Growth system: The more each item is collected, the stronger it becomes.-Recommended for: If you are interested in preserving the environment, or if you like casual games