TV-Series
Description
The Green Keeper is a prominent figure in the Go! Go! Loser Ranger! series, serving as one of the five Dragon Keepers who defend Earth from the monster army. His real name is Chidori, and he holds the position of leader within the Green Squadron, carrying the highest rank among its members. This role places him at the forefront of the ongoing, ritualized battles against the monster forces, which are public spectacles held every Sunday.

Beneath his heroic facade, Chidori leads a deeply complex and secretive life. Public records indicate a past arrest, though significant portions of his criminal history have been inexplicably erased or are missing, making his true background a mystery that even his fellow Dragon Keepers do not fully understand. He keeps his identity carefully guarded, operating not only as a hero but also as a clandestine informant and part-time detective, selling information while hiding his true nature from his own organization. His civilian life is a quiet one, lived in a secluded house in the forest with his wife and young daughter, a family he appears to protect fiercely from the dangers of his double life.

Personality-wise, Chidori exhibits a stark duality that is central to his character. Before transforming, he is generally calm, friendly, and approachable, a demeanor that belies his flashy and daring casual clothing. However, this serene personality undergoes a complete reversal when he dons the mantle of the Green Keeper. In his transformed state, he becomes loud, high-spirited, arrogant, and almost obnoxiously energetic, displaying a genuine love for combat and a flamboyant showmanship that contrasts sharply with his private self. Despite this bombastic exterior as a hero, glimpses of a more merciful side surface; on at least one occasion, he showed leniency to the series protagonist, Fighter D, even while knowing D was a monster infiltrator.

His role in the story is significant, particularly as a target for Fighter D. After D successfully infiltrates the Ranger organization, he sets his sights on assassinating the Green Keeper, an opportunity that arises after the Green Keeper's secret identity as the informant Chidori is revealed. This hunt leads D to Chidori's home, where the sight of the fearsome Keeper as a loving family man directly challenges D's resolve and complicates the simple narrative of good versus evil. This development highlights the moral ambiguity within the Ranger ranks and serves as a critical point of character growth for the protagonist.

In combat, the Green Keeper is a formidable opponent. His primary weapon is a massive divine hammer known as "Wrath's Hammer," which houses the spirit of the Green Dragon Fafnir, granting him immense physical strength and power on the battlefield. Complementing his combat abilities are his skills as an information gatherer. For his clandestine activities, he possesses a unique set of seven specialized tools, each named after a deadly sin. These include "Sloth's Brain," a tablet containing a vast archive of past news; "Greed's Eye," a miniature, lizard-shaped mobile camera for spying; and "Envy's Medicine," a pistol-like implement. He also uses a mobility device called "Gluttony's Spy" to aid in his infiltrations. Through this combination of raw power, strategic intelligence, and a conflicted personal life, the Green Keeper stands out as a nuanced character whose actions and existence force both the characters in the story and the audience to question the true nature of heroism.
Cast