, 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 twenty-two volumes . An anime television series adaptation produced by Yostar Pictures aired from April to June 2024. A second season aired from April to June 2025.
Plot Thirteen years ago, the Villainous Army of Evil attempted to invade Earth, faced by the Super Sentai squadron known as the , 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.
Characters Main
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.
An inspiring independent Ranger cadet who is aware of the Dragon Keepers' 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.
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.
Dragon Keepers
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.
First Class
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, and the only member with visible scars on his face. Originally in a gang to raise money for an orphanage, he joined the Rangers after Akabane blackmails him while in jail. He is killed by Peltrola's sneak attack while he is fighting D.
The Yellow Keeper and commander of the Yellow Battalion. He is often seen smiling constantly.
The Green Keeper and commander of the Green Battalion. He is the only member of the team to have his entire face covered and is almost always silent.
The Pink Keeper and commander of the Pink Battalion and Hibiki's older sister. She is obsessed with keeping Hibiki safe. When un-transformed, it is revealed she is crippled after getting caught up in Peltrola's battle and has to rely on a wheelchair. She is struck down by Hwalipon during a war with his monsters.
The original Blue Keeper who stepped down from the role when Shougo Aoshima was chosen, but returned upon the latter's death.
The second Pink Keeper who previously held the rank of Third Class before taking up the mantle of Pink Keeper following Sesera's fall.
Red Battalion
The current second-in-command of the Red Battalion who formerly held the position of Third Class.
A former colorless cadet who originally joined to seek revenge on the boss monsters for the death of his brother and to get the truth of why their existence was hidden by the Ranger Academy, feeling betrayed by them in their corruption. He transferred over to the Red Battalion due to his actions in fighting Peltrola in the first year, even though he failed the test; the Rangers were impressed by his skill.
A member of the Red Battalion with the rank of Junior Third Class. In spite of his intimidating lion-like appearance, he shows himself to be quite compassionate and considerate of his fellow cadets.
The first former second-in-command of the Red Battalion with the rank of Junior First Class. Despite appearing polite and civil, he has ambitions of replacing Akabane as Red Keeper. After Akabane gets outsmarted by D at one point, Jin loses faith in his leader and demands that he hand over the role of Red Keeper to him, only to get beaten to death by his former idol.
The second second-in-command of the Red Battalion after Jin's death to serve under Akabane. Unlike Jin, Dairyu is far more reserved and withdrawn. During a meeting between the Dragon Keepers and their second-in-commands, Dairyu accidentally spills tea on Akabane after tripping on himself. Akabane then promptly beats him to death like he did his previous second-in-command.
A member of the Red Battalion with the rank of Second Class, serving as a rival to Tokita. He is killed by monsters when investigating a zoo.
The third second-in-command of the Red Battalion after Dairyu's death to serve under Akabane. At some point, he is murdered by the Executive Hwailipon, who then wears his skin to infiltrate the Dragon Keepers and keep an eye on their activities.
Blue Battalion
The second-in-command of the Blue Battalion, first serving under Keisuke Souma until he stepped down and then serving Shougo Aoshima when he took over, forming a deep bond with the latter. Formerly cheerful and light-hearted, she becomes cold-hearted and obsessed with getting revenge for Aoshima's death, treating Souma with indifference when he takes over again.
A former colorless cadet who gets inducted into the Blue Battalion for his actions against Peltrola despite failing the entrance test. He once shared the dream of becoming Rangers together with Koguma, and continues on for his sake after the latter falls into a coma due to his injuries in fighting Peltrola. He is very protective of his younger siblings who look up to him and convinces the Fighters in the floating fortress to aid him fighting the Death Messiah.
A lower-rank member of the Blue Battalion.
A second class member of the Blue Battalion under Aizome who also looked up to Aoshima and is devastated by his death.
A member of the Blue Battalion with the rank of Junior Third Class. Known for his emotional instability, he is shown having a severe weakness complex and cares too much about what others think of him.
A lower class member of the Blue Battalion known for his recklessness.
Green Battalion
The second-in-command of the Green Battalion under Chidori. Hisui lost her family to the monster invaders as a child and harbors a great deal of vitriol against them. It was only after climbing the ranks of the Rangers that she became more open-minded and chose to fight for justice instead of revenge. Similar to Chidori, she is aware of the corruption in the Ranger organization.
A former colorless cadet who passes the entrance test and joins the Green Battalion. She is secretly a member of the Invader Rights Association who infiltrated the Rangers under her father's orders. However, after discovering the group's true plans, she breaks away and sides fully with the Rangers.
The original second-in-command of the Green Battalion under Chidori. Kanade used to be rivals with Hisui, often sparring whenever they could, but they held respect for one another. Kanade was killed by her fellow Green Battalion member Kyosuke Wakaba, who betrayed them and took the side of the Executive Magatia.
Yellow Battalion
The second-in-command of the Yellow Battalion under Shinya Kiritani. She is known for her analytical mind and genius, helping her leader invent new things.
A former colorless cadet who passes the entrance exam. She initially joins the Blue Battalion before transferring to the Yellow Battalion after discovering her smarts are better suited for science and analyzation.
A member of the Yellow Battalion under Shinya Kiritani with the rank of Third Class. Known for his curiosity, he ends up getting into trouble with the Invader Rights Association where Shinya ends up sacrificing him to defeat an enemy he gets entangled with.
Pink Battalion
The second-in-command of the Pink Battalion under Sesera until her fall during the fight with Hwalipon, now serving under Noa Hagino after she takes up the mantle. In spite of his Bara-like appearance and imposing visage, he is actually quite gentlemanly, except for battle where he can cut loose. He is devastated after Seresa's fall.
Colorless Rangers The "Colorless" refer to the lowest-ranking members of the Keeper hierarchy, and are often looked down upon by those higher up the ranks.
The oldest of the colorless cadets who once held the Keepers in high regards. He is killed by Peltrola during the monster's reveal in the final exams to become Rangers, sacrificing his life to ensure his friends succeed.
The only female left of the colorless cadets. Even after failing the first test, she remains where she is in an attempt to become a full cadet eventually. She and Shippou become close after the first year.
A member of the colorless cadets who originally joined in order to become popular with the ladies. After the first year, he becomes close with all his fellow cadets and now seeks to fight for real justice.
The strongest physically of the colorless cadets. Though he passes his test, he chooses to stay behind to help his fellow low level cadets, becoming particularly close with Akebayashi in the process.
The shortest of the colorless cadets who is childhood friends with Urabe, both with dreams of joining the Keepers. He is the first to discover D's identity when he is in disguise as Hibiki, the Duster having trusted him enough to reveal his secret. He is nearly killed by Petrola when the monster reveals himself in the Blue Garrison, but survives and is left in a coma for a time; reawakening after the fall of the Invader Rights Association.
Others
The mascot of the Dragon Keepers.
A former member of the Green Battalion, who led Ouroboros with the Executive Magatia. He betrayed and murdered the second-in-command Kanade Tokiwa out of jealousy for her Divine Artifact and out of disillusionment with the world around him, preferring to live in the fantasy Magatia gave him. He is ultimately killed by Hisui, avenging Kanade and the lives of the other Green Battalion he murdered.
A former soldier who fought in war that became disillusioned with the undeserved deaths of children, swayed into joining Magatia under the false promise of creating a more perfect world without strife and made to operate in the abandoned school as a teacher.
A young teen who was spirited away and killed by Magatia to be made into his human vessel for the purpose of hiding his presence in the abandoned school.
A detective of the Metropolitan Police Department and the older brother of Yuu who seeks to learn the truth of his younger brother's disappearance, inadvertently getting involved in the fight against the boss monsters in the process.
A detective from the Metropolitan Police Department. He and Nishiki are investigating the spirited away cases of young students in the Amanogawa City.
The chairman of Invader Rights Association board and the father of Angel Usukubo.