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.

In the lush Yamabiko Village lives a family of Kappas who grow unique flowers on their heads. While the adults have permanent blossoms, a young kappa sprouts a different "whatever flower" every day until reaching adulthood. Chaos constantly erupts in the village as the villainous Kurobaya Chobei gang schemes to steal the "Waka-ran," a rare, youth-restoring flower, leaving everyone wondering what will bloom next. And what on earth will the little kappa’s flower turn out to be?