Go! Go! Loser Ranger!

Go! Go! Loser Ranger!
First tankōbon volume cover, featuring Red Keeper
戦隊大失格 (Sentai Daishikkaku)
Genre	Action[1] Comedy[1] Superhero[1]
Manga
Written by	Negi Haruba
Published by	Kodansha
English publisher	NA: Kodansha USA
Imprint	Shōnen Magazine Comics
Magazine	Weekly Shōnen Magazine
Demographic	Shōnen
Original run	February 3, 2021 – present
Volumes	18 (List of volumes)
Anime television series
Directed by	Keiichi Sato
Written by	Keiichirō Ōchi
Music by	Yoshihiro Ike
Studio	Yostar Pictures
Licensed by	Disney Platform Distribution
Original network	JNN (TBS), BS11, AT-X (S1–S2) CBC (S2)
Original run	April 7, 2024 – present
Episodes	23
Anime and manga portal

Go! Go! Loser Ranger!^[a], also known as Ranger Reject, is a Japanese manga series written and illustrated by Negi Haruba. It has been serialized in Kodansha's Weekly Shōnen Magazine since February 2021, with its chapters collected in eighteen tankōbon volumes as of April 2025^[update]. An anime television series adaptation produced by Yostar Pictures aired from April to June 2024. A second season premiered in April 2025.

By October 2023, the manga had over 20 million copies in circulation.

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