Hayato Kazamatsuri is a character from the anime series Gilgamesh. He is introduced as the son of Chairman Yuki, born from an affair with one of the chairman’s many mistresses. His position as the offspring of a powerful and influential father shapes his standing within the world of the story.

His personality is notably aggressive and confrontational. He is depicted as a very angry and stubborn individual, with a disposition that leans toward warmongering. This temperament drives his actions and his approach to the central conflicts of the series.

In terms of his role, Kazamatsuri is not merely a passive heir but an active and powerful player. He is the owner and operator of his own weapons contracting company, indicating significant resources and influence separate from his father’s immediate shadow. A primary objective for him is the destruction of the mysterious beings known as the Gilgamesh. To achieve this goal, he creates a secret army of anti-Gilgamesh creatures called the Blattaria, which he commands and deploys to fulfill his plans. At one point, he exposes plans to annihilate the Gilgamesh alongside allies like Reiko, the adoptive daughter of his father. He is also aware of secrets concerning the Orga, which he reveals to another character, Isamu, suggesting he possesses a deep and tactical understanding of the supernatural elements at play.

Regarding his key relationships, he is directly tied to Chairman Yuki as his son, and he allies with Reiko in the shared objective against the Gilgamesh. Information regarding his personal development over the course of the story, as well as his detailed notable abilities beyond the creation and command of his Blattaria army, is not available.