Synopsis
In the wake of an asteroid impact that destroyed Pluto twenty years ago, the asteroid Thanatos has halted, posing a threat to Earth's future. The International Solarsystem Development Agency (ISDA) launches the "D-Project" to address this danger by creating a special weapon called the "Dragonaut," forged from a dragon egg found beneath the ocean. However, the ISDA discovers that Thanatos is not the only menace, as dragon-like beings begin appearing on Earth. Jin Kamishina, an 18-year-old orphan who lost his family in a shuttle accident two years earlier, becomes central to these events when he witnesses one of these creatures attack and kill someone. Jin is then chosen to pilot the Dragonaut and gets drawn into the mysteries surrounding the dragons. A girl named Toa saves him from a fall during a creature's assault and aids him on his journey. As they uncover more about the dragons' origins, Jin and Toa encounter both allies and enemies, strengthening their bond along the way.
