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.
Eventually, a giant spiral resembling the metal construction of the material devils appears in the sky, and the police evacuate a section of the city.