Little ball-shaped creatures used and possibly invented by Zvezda. They can fuse together into [[kaijuu]] (it takes a few thousands of them to form one, though), as individuals they have a form of sentience (to what extent exactly is not known yet) and can also serve as an impromptu inflatable shield (capable of withstanding a few bursts of automatic gun fire), as a hot-air-balloon-like flying device and as a magic satchel (storing a bag bigger than their usual size would normally allow). [[natasha_(sekai_seifuku)|Natasha]] can generate them from her tears as an emergency measure, although how that exactly works, wasn't revealed.

Ambiguous tag. 

The artist formerly tagged here was divided into [[Soutou]] and [[Kurukuru_(P!)]]. 

For some potential artists named Kurukuru: "kurukuru_* search":[/artist?name=kurukuru_*] | "*_kurukuru search":[/artist?name=*_kurukuru]