Appearing as a protective Night Wizard from Kimei Academy, Kirihito intervenes at critical moments to save Elis Shihō, rescuing her from lunar danger and shielding her when others turn hostile. He displays formidable magical power, effortlessly cutting down groups of Emulators that challenge fellow wizards and demonstrating intricate knowledge of complex magical consequences, including those related to the Ain Soph Aur. His actions extend to destroying the Tower of Babel after the Demon Lord Amy's defeat.

This perceived mentorship and benevolence masks an elaborate deception. Kirihito is ultimately unveiled as Gazer, an eternal observer originally charged with overseeing the world. Disillusioned by humanity's destructive tendencies like warfare and environmental neglect, he abandons his duty. He orchestrates a plan to trigger the world's annihilation and rebirth. To achieve this, he manipulates Elis Shihō, fabricating her memories and engineering events to plunge her into profound despair, thereby awakening the destructive entity Shaimal within her as its vessel.

Kirihito's motivations stem from a conviction that humanity's inherent flaws necessitate the world's destruction and renewal. His actions directly contribute to broader metaphysical disruptions, including destabilizing the World Barrier and enabling the emergence of new threats such as the Underworld Demons within the setting's expanded lore.