Release: 2020

Status: Completed

Type: ONA

Genres: Action, Drama, Sci-fi

Other Name: Cagaster of an Insect Cage, 虫籠のカガステル

Total Episodes: 12

Synopsis: In a near future, an illness called "Cagaster" made ​​its appearance. It turns humans into insects. The story begins 30 years after the onset of the illness, in 2125. It follows the adventures of Kidou, a boy who fights insects.