"Tentai Senshi Sunred" is a comedic anime series that subverts traditional superhero tropes by blending slice-of-life elements with absurd humor. The story revolves around Sunred, a former hero who has retired from active duty and now lives a mundane, lazy life in an apartment with his girlfriend, Kayoko. Despite his past as a powerful hero who once fought against evil forces, Sunred is now portrayed as a slacker, often seen lounging around, gambling, and relying on Kayoko for financial support.

The primary antagonists are the Florsheim Army, a group of inept and comically harmless villains led by General Vamp. Despite their grandiose plans to conquer the world, the Florsheim Army is largely ineffective and often finds itself struggling with everyday problems, such as financial difficulties and interpersonal conflicts. General Vamp, in particular, is depicted as a sympathetic and oddly relatable character, frequently engaging in mundane activities like grocery shopping and dealing with his subordinates' incompetence.

The dynamic between Sunred and the Florsheim Army is central to the series. While Sunred no longer actively fights evil, he occasionally intervenes when the Florsheim Army’s schemes become too bothersome. These confrontations are typically brief and anticlimactic, with Sunred effortlessly defeating the villains before returning to his idle lifestyle. The series often highlights the absurdity of the situation, as the Florsheim Army continues to view Sunred as a formidable foe despite his apparent lack of interest in heroics.

Supporting characters include Kayoko, who works as a nurse and serves as the more responsible and grounded counterpart to Sunred. Her relationship with Sunred is a mix of affection and exasperation, as she tolerates his laziness while occasionally scolding him for his behavior. Other characters include members of the Florsheim Army, such as the bumbling minions and the enigmatic but equally ineffective Dr. Shokatsu Komei, who adds to the comedic chaos with his over-the-top inventions and schemes.

The series is episodic in nature, with each episode presenting self-contained stories that explore the quirky interactions between Sunred, Kayoko, and the Florsheim Army. The humor is derived from the contrast between the characters' mundane lives and their roles in a larger, albeit ridiculous, battle between good and evil. The tone is lighthearted and satirical, poking fun at traditional superhero narratives while offering a unique take on the genre.