"Shin-men" is a short anime series that blends comedy, martial arts, and absurdity, centered around the fictionalized lives of real-life martial artists and celebrities. The narrative revolves around the misadventures of Masakatsu Funaki and Minoru Suzuki, two professional wrestlers and mixed martial artists, who are portrayed as larger-than-life characters in a satirical and exaggerated manner. The series is structured as a series of episodic skits, each presenting the duo in bizarre and humorous scenarios that often parody martial arts tropes and celebrity culture.

The plot is non-linear and episodic, with each episode featuring Funaki and Suzuki in various outlandish situations. These range from battling supernatural entities, engaging in over-the-top martial arts competitions, to navigating mundane daily tasks with their signature intensity and flair. The humor derives from the stark contrast between their serious, stoic personas and the ridiculousness of the situations they find themselves in. The series also incorporates cameos and references to other real-life martial artists and public figures, adding a layer of meta-commentary on fame and the martial arts world.

The main characters, Funaki and Suzuki, are depicted as hyper-competent yet socially awkward individuals. Funaki is often portrayed as the more level-headed and strategic of the two, while Suzuki embodies a more chaotic and unpredictable energy. Their dynamic is a key source of the series' humor, as their interactions oscillate between camaraderie and rivalry. Supporting characters, including other martial artists and fictionalized versions of celebrities, frequently appear to add depth and variety to the episodic structure.

"Shin-men" does not follow a traditional narrative arc but instead relies on its episodic format to deliver a mix of action, comedy, and satire. The series is characterized by its fast-paced, absurd humor and its unique take on the lives of its real-life protagonists, offering a fresh and unconventional perspective on the martial arts genre.