Yasuyuki Takase

As an unexpected typhoon bears down on a small tropical island, a group of students trapped at school find themselves forced to put aside their personal issues and work together. Not only to save themselves, but possibly the lives of everyone on the planet!

Gaimetal, a metallic mineral with high amounts of pure energy, was discovered 50,000 meters underground in 2047, and began mining worldwide. However, Gaist, which are metallic life forms whose bodies are fully embedded with Gaimetal emerged in 2055 and started to attack people. In 2064, Rekka, Hayato, Kurama, and Siren are among those known as Gear Gaist and they faced the battle with more than 100 varieties of creatures Gaist.