Sasao commands a legion of carnal demons, masquerading as the unassuming manager of a restaurant where he scouts potential victims. His human guise—a bespectacled, dark-haired figure with an unremarkable appearance—cloaks his predatory intent, allowing him to surveil targets while orchestrating their capture. The establishment doubles as a hunting ground, luring individuals through staff dressed in revealing uniforms he personally designs to entice and ensnare.

In his true form, Sasao sports writhing purple tentacles capable of delivering lethal strikes, leathery bat-like wings, and uncanny regenerative powers that mend even fatal wounds. Resilient against ordinary assaults, he rules over a demon clan harbored within a dimensional portal tethered to a skyscraper, where prisoners endure grim exploitation.

A tactician of shadows, he conjures portals of darkness to summon his clan, orchestrating ambushes and protracted battles that exploit his healing abilities and strategic portal deployment. Though his authority within the demon hierarchy requires formal approval for clan operations, his arrogance often spawns tactical blind spots, leaving openings for adversaries.

His reign crumbles when imprisoned captives—including mutated soldiers—break free through tenacity and outside aid. Despite formidable physical and magical prowess, his failure to contain the rebellion seals his defeat. The narrative omits details regarding his origins, deeper motivations, or pursuits beyond his predatory command.