Humans are in danger, global warming and wars will have had their way with them. A mysterious external threat has come to blow the final whistle. The Earth has become a devastated world, nothing lives there anymore. Four groups of survivors in the four corners of the world decided to build robots in the form of Dragon, the mythical animal. To appease mother nature, they choose the 4 elements: Earth, Water, Fire, and Air. With life on Earth no longer what it used to be, they decide to upload their consciousness into these robots to fight this external threat. They were now part of the new world : The Metaverse. These battles united them and as they grew stronger, they became a true family. They decided to rebuild the Earth together, and to share their knowledge in the business.