GUMI, Hatsune Miku, Megurine Luka, and Kagamine Rin operate a junk collection business in a cluttered downtown district. They drive a light truck, gathering broken TVs, computers, and other items while broadcasting silly announcements over the speaker. Their office occupies a corner of a multi-tenant building and bills itself as a recycle shop, yet most of the space resembles a warehouse with junk lined up and tagged with prices. Soon, the four begin receiving requests for junk they cannot handle alone, and by chance, the abandoned items end up in GUMI's hands. Meanwhile, in the city center, an environmental beautification organization is formed, and a cleanup operation for the downtown area is set to begin, under the pretext of redeveloping the area into a beautiful town. GUMI and the others rebel against the downtown way of life that is gradually being threatened. As the government and beautification organizations each pursue their own agendas, breaking news reports that a dangerous creature has been found on the garbage dump, prompting a drastic move to clean up the dump and the downtown area, turning it into a vacant lot.