This is a classic adventure game ported to mobile phones. It tells the story of a warrior played by the player who embarks on an adventure to save the world.
The power of the elements in this world is determined by the state of the four element crystals, each of which dominates one of the four elements of earth, water, fire, and wind. The world is inhabited by multiple races, including humans, gnomes, dwarves, dragons, and robots.
Four hundred years before the game plot began, a group of people used the power of the wind to make an airship and a huge space station. The viewers and their country declined as the wind crystal darkened. Two hundred years later, the hurricane sank the temple centered on ocean civilization, and the water crystal darkened. The crystals of earth and fire also darkened afterwards. After a while, the sage predicted that the four warriors of light would save the world once plunged into darkness.