The first twelve episodes of the series focus on the daily life of Ayumu Aizawa as he visits his father, a veterinarian, in a small town in the countryside.

Ayumu has spent his visit thus far aimlessly biking across the valley, but a chance meeting with a girl named Miku sends him searching for a long-lost friend of his, Wakkun.

Wakkun introduces Ayumu to his two friends, Dosshiru (Doss) and Shisshin (Sense), mysterious flying objects that alternate between a mechanical form and a sphere of yellow light.

Meanwhile, Sukawara reappears, now trying to prove the existence of the mysterious objects that appeared at the Cat Dance in Tana one-and-a-half year ago, which she terms "material fairies", and hears about Bun-chan.

The city's population becomes aware of the situation as pictures of the material devils and spheres of blue light, circulate among cell-phone users, accompanied by rumors that they bring good luck.