Hazama is a prominent antagonist in the series, known as a Shikabane, a member of the elite undead group called the Shichisei. His rank within this organization is the First Star, and he serves as the primary right hand to Hokuto, who is the true leader of the group. Hazama is easily recognizable by his appearance, which is that of a middle-aged man with long black hair and a distinct black mustache. He typically wears a grey yukata, and his neck is marked with the Big Dipper symbol, which signifies his high rank within the Shichisei.

Hazama’s personality is defined by his cunning, cruelty, and deep-seated desire for chaos. He is a master manipulator who views both the living and his undead allies as expendable tools to be used for his own ends. He displays a particular amusement in the suffering of others, such as when he laughed while witnessing the tragedy of the Shikabane Hime Hibiki being forced to kill her comrades. He is also directly responsible for the brutal massacre of Makina Hoshimura and her entire family, an act that set the main events of the story in motion. His motivations are grand and destructive; his ultimate goal is not simply to cause mayhem but to orchestrate the complete liberation and destruction of the Kougon Sect, the organization of Buddhist monks that creates and controls Shikabane Hime. A key part of this plan involves a personal vendetta tied to Makina and Hokuto, revealing that his schemes are long-held and deeply intricate.

Within the story, Hazama acts as a primary agent of the Shichisei, forming alliances with other powerful enemies like Akasha Shishidou and his group, the Unclean Bunch, to strengthen their assault on the Kougon Sect. His role is to destabilize the world of the living and the Kougon Sect through massive, shocking acts of terror, such as hijacking and crashing two commercial airplanes into Yama City to create countless new Shikabane. He also serves as a direct adversary to the protagonist, Makina. He reveals to her that her own family’s ancestral bloodline is responsible for creating Hokuto, framing her as a natural enemy and attempting to shatter her spirit.

Hazama has several key relationships that define his actions. His most significant is with Hokuto, the leader of the Shichisei, to whom he is utterly devoted. He is also the architect of the Hoshimura family massacre, making him the direct cause of Makina Hoshimura’s death and her subsequent rebirth as a Corpse Princess. He briefly aligns himself with Akasha Shishidou, using the monk’s power to further his own goals, though this alliance eventually sows the seeds of his downfall.

Throughout the narrative, Hazama demonstrates little to no positive development, instead descending further into his own schemes. After his grand plan begins to unravel due to betrayal and the near-destruction of the Shichisei, he is last seen fleeing with Hokuto to an abandoned complex. In these final moments, his mental state appears to have fractured, as he is shown laughing maniacally and exhibiting signs of insanity during the final confrontation.

As a Shikabane, Hazama possesses formidable supernatural abilities. His primary power is the manipulation of insects. He can command vast swarms of various bugs to attack his enemies. His most notable offensive technique is his curse, which allows him to project massive, powerful limbs resembling giant centipedes from his own body, which he uses to incapacitate or kill his targets.