Cagaster of an Insect CageCagaster of an Insect Cage.

Cagaster of an Insect Cage (Japanese: 虫籠のカガステル, Hepburn: Mushikago no Kagasuteru) is a Japanese manga series by Kachō Hashimoto released from 2015 to 2016 in the serialized magazine Monthly Comic Ryū. Prior to becoming a manga series, Cagaster of an Insect Cage was first a dōjinshi series posted on Hashimoto's website, which was published from 2005 to 2013. The series was adapted into an original net animation (ONA) series produced by Studio Kai and directed by Koichi Chigira, which premiered on Netflix on February 6, 2020.