Many years ago, the Sand Wizard, a wizard with very strong abilities, imprisoned four demons in a dark dungeon. However, recently someone accidentally opened a dungeon, and the demons were able to free themselves and return to the human world. Their castle was replaced by a huge city, and they decided to destroy it. From now on, the Mighty Rangers come into play, who are the only ones who can stop them and save the city from the threat. You have a large amount of special equipment and weapons at your disposal, so take it and save innocent civilians by fighting frightening monsters.