Manga vol01
"A super exciting action comedy starring the inmates and guards of the world's most formidable prison."

Nanbaka 「ナンバカ」 is a Japanese manga series written and illustrated by Shou Futamata and has collected 4 volumes thus far, and updates weekly on Saturday. A 13-episode anime television series adaptation premiered in the Fall season on October 5, 2016, followed by another season airing on January 4, 2017. The title is a play on words, combining the name of the prison, which is the Japanese transcription of the word "number", and the Japanese word "baka" for "fool" or "idiot".

Shou Futamata began serializing the manga on NHN PlayArt's Comico manga app on October 13, 2013. The series is published in print by Futabasha. Crunchyroll Manga acquired the series for digital publication in English.


The story centers around four young men who are assigned to Nanba, the world's most formidable prison. Jyugo, who attempted to break out of prison and ended up extending his jail time; Uno, who likes gambling and women; Rock, who likes to get into fights; and Nico the ex-drug courier who likes anime and manga. The action follows the daily lives of the prison’s inmates and guards.

List of Volumes

Release Date
Manga vol01
Nanbaka Volume 1

ISBN: ISBN 978-4-575-84713-0
November 12, 2015 (Japan)
December 21, 2015 (US)
Manga vol02
Nanbaka Volume 2

ISBN: ISBN 978-4-575-84794-9
May 12, 2016 (Japan)
August 3, 2016 (US)
Manga vol03
Nanbaka Volume 3

ISBN: ISBN 978-4-575-84846-5
September 12, 2016 (Japan)
September 24, 2016 (US)
Manga vol04
Nanbaka Volume 4

ISBN: ISBN 978-4-575-84924-0
February 10, 2017 (Japan)
Manga vol05
Nanbaka Volume 5

ISBN: ISBN 978-4-575-84970-7
June 6, 2017 (Japan)
Manga vol06
Nanbaka Volume 6

ISBN: ISBN 978-4-575-85026-0
September 12, 2017 (Japan)
Manga vol07
Nanbaka Volume 7

ISBN: ISBN 000-0-000-00000-0
January 12, 2018(Japan)