Kagaya is a supporting character in the anime Sagrada Reset. He is a member of the Administration Bureau, the organization responsible for managing the various supernatural abilities within the town of Sakurada.

His primary function within the Bureau is defined by his ability. Kagaya has the power to lock anything he touches. This ability is used by his superior, Masamune Urachi, to further the Bureau's goals and maintain control over other ability users. In one instance, Urachi attempts to use Kagaya's locking power as a form of assurance during a negotiation, instructing Kagaya to shake hands with the protagonist Kei Asai. This act is part of a larger strategic gambit, but the plan is thwarted when Kei uses a combination of other abilities to make Kagaya temporarily forget his own power.

Information about Kagaya's personal background, his history before joining the Bureau, and his specific motivations is not available in the provided search results. Similarly, his personality, whether he holds any personal convictions about the Bureau's mission, and his development over the course of the story are not detailed. Beyond his working relationship with Urachi and his role as a tool in Urachi's schemes, no key relationships are explored. Consequently, details on his background, personality, motivations, development, and a full account of his abilities beyond the basic description of locking cannot be provided.