Akaza the Human Pump, a sword-swallowing strongman of the Red Cat Circus freak show, boasts a hulking physique, a single penetrating eye, and an outwardly relaxed demeanor that masks his involvement in the troupe’s sadistic rituals and fetishistic indulgences. Renowned for his voracious appetite for food, wealth, and casual trysts with fellow performer Benietsu, he operates in lockstep with the troupe’s twisted hierarchy, routinely tormenting protagonist Midori during her enslavement at the circus. Though his past lacks a defined origin story, his present revolves around displays of brute strength and aiding the troupe’s cycle of exploitation. When a disastrous performance dismantles the circus, Akaza pragmatically pursues survival by attempting to regroup with surviving members into a new troupe. His cinematic portrayal diverges subtly: while the manga and anime depict him callously deserting Midori post-collapse, the 2016 film briefly inserts him into her despair-fueled hallucinations—visions that evaporate when she challenges them. Akaza’s treatment of Midori shifts from active participation in her torment to passive disinterest after the circus’s demise, mirroring the troupe’s transition from collective cruelty to detached apathy. His dynamic with Benietsu remains static across adaptations, anchored in shared indulgence in the troupe’s excesses, devoid of emotional depth. Faithful to source material, his design underscores raw strength and seamless integration into the circus’s macabre spectacle, prioritizing narrative function over personal history or动机.