Dragon City Password

There is such a legend. According to legend, Dragon City is a place where divine power is gathered, especially if you get the Huntian Divine Pearl in Dragon City. After you swallow it, your whole body will be filled with divine power and you will be invincible in the world. Therefore, there is a rumor that "the one who obtains the divine pearl will conquer the world". However, legends are always unbelievable. No one knows whether there is a Dragon City, and no one believes that there really is a Dragon City in this world. But recently, there are rumors that: "If you want to know the Dragon City, you must get the Five Elements Jade Key." It is said that the Five Elements Jade Key is five keys made of five pieces of fine jade, with the Five Elements of gold, wood, water, fire and earth engraved on it. But no one knows where these five jade keys are, maybe they don't exist at all. However......