"Dead Leaves" is a fast-paced, surreal sci-fi anime that unfolds in a dystopian future. The narrative centers on two amnesiac characters, Retro and Pandy, who awaken on Earth with no memory of their past. After committing a series of chaotic crimes, including robbing a convenience store and hijacking a police car, they are arrested and sent to Dead Leaves, a high-security prison on the moon. The prison is notorious for its brutal conditions and bizarre experiments conducted on inmates, often resulting in grotesque mutations.

Retro and Pandy quickly become central figures in the prison, rallying other inmates to resist the oppressive regime. The warden, Galactica, and her enforcer, the monstrous mutant known as the Cyclops, oversee the facility with ruthless efficiency. As Retro and Pandy uncover fragments of their forgotten identities, they learn that they share a deeper connection, which becomes pivotal in their fight against the prison's authorities.

The plot accelerates as the inmates stage a rebellion, leading to a climactic confrontation with Galactica and her forces. The story is marked by its frenetic pacing, dark humor, and over-the-top action sequences, blending elements of cyberpunk, body horror, and absurdist comedy. Retro and Pandy's journey is as much about reclaiming their lost memories as it is about challenging the oppressive system that seeks to dehumanize them.

The anime's narrative is driven by its eccentric characters, including the enigmatic Retro, whose past is shrouded in mystery, and Pandy, whose fierce determination and unorthodox methods make her a formidable leader. The supporting cast of inmates and prison staff adds to the chaotic and unpredictable atmosphere, with each character contributing to the escalating tension and eventual uprising.

"Dead Leaves" is characterized by its unconventional storytelling, blending rapid-fire dialogue, exaggerated visuals, and a nonlinear structure that keeps the audience engaged. The series explores themes of identity, rebellion, and the consequences of unchecked authority, all while maintaining a relentless pace that mirrors the chaotic world it portrays. The story concludes with a resolution that ties together the characters' arcs while leaving room for interpretation, reflecting the series' overall tone of unpredictability and defiance.