Go! Go! Loser Ranger![a] is a Japanese superheromanga series written and illustrated by Negi Haruba. It has been serialized in Kodansha's Weekly Shōnen Magazine since February 2021, with its chapters collected into thirteen tankōbon volumes as of February 2024[update]. An anime television series adaptation produced by Yostar Pictures premiered in April 2024.
Thirteen years ago, the Villainous Army of Evil attempted to invade Earth, faced by the Super Sentai squadron known as the Divine Dragon Rangers (竜神戦隊ドラゴンキーパー, Ryūjin Sentai Doragon Kīpā, lit.'Dragon God Squadron Dragon Keeper'), also known as the Dragon Keepers, and their super weapons, the Divine Tools. The evil army, however, was defeated within a year, all of its Executives wiped out, and the surviving (and almost immortal) foot soldiers have been forced ever since to reenact their defeat to the Keepers in front of a crowd of spectators every Sunday. Tired of the charade, and realizing that this amounts to little more than slavery, one of the foot soldiers rebels, and decides he will defeat the Dragon Keepers by infiltrating the organization.
A rebellious foot soldier from the villainous army in the sky fortress that arrived 13 years ago, he is a Duster with transformative and regeneration abilities alongside his fellow foot soldiers who vowed to defeat the Dragon Keepers by infiltrating their organization and ranks. He takes on two disguises for most of the series; one is an appearance of an average black haired teenage guy, and the other as Hibiki so he can use his identity to infiltrate their ranks easier.
A Junior First-Class ranked Ranger from the Yellow Battalion, who has a mysterious grudge against the Dragon Keepers. She and D made an alliance together to collect their Divine Tools and plans to kill them, though her background and motives remains unknown.
An inspiring independent Ranger cadet who is aware of the Keeper's corruption but wishes to fix their system by bringing them back to their original sense of justice. Following an attack to cover D, he swaps places with him after becoming disfigured while D carries on using his identity for most of the series. His current whereabouts remain unknown.
The Dragon Keepers organization comprises the five "First Class" Dragon Keepers and those under their command. Each Keeper has their own battalion with distinct responsibilities within the organization, and each member has a different rank determined by their respective Keeper. The First Class Keepers also possess the Divine Tools that have the power to permanently kill members of the Villainous Army, although lower-ranking members can be assigned replicas or other weapons with similar power.
The leader of the Dragon Keepers and commander of the Red Battalion. Despite appearing friendly and inspiring, he possesses an extremely violent nature that he will not hesitate to use on those that anger him, including his own subordinates.
The Blue Keeper and commander of the Blue Battalion an the only member with visible scars on his person. Originally in a gang to raise money for an orphanage, he joined the Rangers after Akabane blackmails him while in jail. He was killed by Peltrola's sneak attack in a battle with D.
The Pink Keeper and commander of the Pink Battalion and Hibiki's older sister. She is obsessed with Hibiki. When un-transformed, it is revealed she is crippled after getting caught up in Peltrola's battle, and has to rely on a wheelchair.
Chidori (千鳥) / Green Keeper (グリーンキーパー, Gurīn Kīpā)
On October 27, 2020, Negi Haruba started recruiting regular assistants for his coming new series.[8][9] On December 23, 2020, it was announced that Negi Haruba would start his new manga series Go! Go! Loser Ranger! on February 3, 2021.[10]
Go! Go! Loser Ranger! is written and illustrated by Negi Haruba.[11] The manga series began its serialization in Kodansha's Weekly Shōnen Magazine in the 10th issue published on February 3, 2021.[12] Kodansha has collected its chapters into individual tankōbon volumes. The first volume was released on April 16, 2021.[13] As of February 16, 2024, thirteen volumes have been released.[14] In November 2021, during their panel at Anime NYC, Kodansha USA announced their license to the series and would release it in both print and digital.[15]
An anime television series adaptation was announced on December 6, 2022.[39] It is produced by Yostar Pictures and directed by Keiichi Sato, with scripts written by Keiichirō Ōchi, and character designs handled by Kahoko Koseki, with Kenji Hayama serving as animation supervisor.[40][41] The series premiered on April 7, 2024 on TBS and its affiliates.[2] The opening theme song is "Jikai Yokoku" (次回予告, lit.'"Next Time Preview"'), performed by Tatsuya Kitani,[42] while the ending theme song is "Seikai wa Iranai" (正解はいらない, "Don't Need the Right Answer"), performed by Nanawo Akari.[43] The series is streaming worldwide on Disney+, and on Hulu in the United States.[42]
A flying fortress appears over the town as a group of heroes called the Dragon Keepers dedicate themselves to defend humanity in a never ending war against the invaders. Thirteen years later, the fortress continues to send down monsters and creatures called Dusters to fight the Dragon Keepers every Sunday in an arena display called the Sunday Showdown. The latest is Ul-Tora Tiger, who puts up a dramatic fight against the Dragon Keepers before being defeated. However, it is revealed that this was all staged. In reality, the Dragon Keepers beat the invaders within the first year they arrived. They set up a truce with the remaining Dusters to have them put on performances like this in exchange for being allowed to live. One of the Dusters, Footsoldier D, has grown tired of this and tries to take a stand against the Dragon Keepers before being swiftly cut down by the Red Keeper. He decides to disguise himself as a human and join the Dragon Keepers so he can take them down from within.
D has started his plan by taking the entrance exam to join the Ranger Force. While there, he runs into the two humans he met before, Yumeko Suzukiri and Hibiki Sakurama. They take him out to lunch where he learns that Suzukiri has a mission to deliver a letter to the Red Garrison HQ. Seeing his opportunity, he transforms into Sakurama and accompanies her. Meanwhile, Red and Blue Keeper arrive at the fortress to punish D and scare the Dusters back in line. D plans to stab Red Keeper when he sees him but is scared off by the garrison members and Red Keeper himself. After leaving, Suzukiri reveals she knew about the knife and who D really is. She tells D she wants to work with him to kill the Keepers. Just then, the real Sakurama shows up and says a monster has appeared nearby. The monster is D's friend Footsoldier F, who is trying to find D to bring him back. Red Keeper himself shows up and uses the Divine Artifact to truly kill F.
3
"Our Evil Will Bloom, Someday." Transliteration: "Itsuka, Aku no Hana wa Saku Darou" (Japanese: いつか、悪の花は咲くだろう)
After witnessing F's death, D runs into Sukurama, who reveals he knows the truth after he overheard D and Suzukiri's conversation. However, he also reveals he wants to make a world where humans and monsters can co-exist, which D rejects. D meets with Suzukiri who tells him that the key to defeat the Keepers is to steal their five Divine Artifacts. She also says that the best time to do this is during the Sunday Showdown. D impersonates the Red Keeper and sneaks into Red Garrison HQ, but is stopped by garrison member Tokita. Tokita repeatedly kills D but D manages to trick and beat him. As D escapes with the Divine Artifact, he is confronted by the Keepers. Green Keeper comes up with an idea to have D surrender peacefully but D refuses. As such, Blue Keeper uses his Divine Artifact to kill D. When Red Keeper goes to get his artifact back, it is shown to be a fake as it was created by D using his arm Red Keeper severed earlier. The real one was stolen by Suzukiri. Later on, multiple Blue Ranger members are killed by an unknown monster.
4
"The Soldier With Love, Hibiki!" Transliteration: "Ai no Sorujā Hibiki!" (Japanese: 愛のソルジャー日々輝!)
The Dragon Keepers have a meeting along with their second-in-commands where Red reveals his Divine Artifact was stolen. His second-in-command argues that he should hand the title of Red Keeper to him, but Red beats him to death. Blue and one of subordinates, Hikeru, investigate the battle site to try and find D and the Divine Artifact. Meanwhile, D is revealed to be alive but now has a stomach wound that will not heal thanks to Blue's Divine Artifact. He is found by Sukurama, who tells D his backstory. They are then found by Hikeru. Sukurama tries to lure him away but after Hikeru threatens him, D arrives to fight. Hikeru counters with a Divine Artifact replica that D cannot touch due to it only being able to be used by someone Hikeru "bonds" with. D runs away and tries to use Sukurama as a hostage. Hikeru backs off and drops the replica. Sukurama grabs it and appears to kill D. In reality, the two made an agreement to swap disguises so D could infiltrate the Rangers. The disguised D and Hikeru fly away in a chopper, while Sukurama stays in the forest disguised as D.
5
"Fighter D, as a Part of 'Ranger Force'" Transliteration: "Ima, Taisen Sai no Naka de" (Japanese: いま、大戦際のなかで)