Orihime Kazahaya attends Saint Ceral Girls' Academy as a student. She is the daughter of Yukitaka, head of the global Jinsei Corporation, and its designated heir. Raised within this prominent family structure, her life intertwines corporate and personal responsibilities, necessitating discreet oversight for her safety and activities. This led to Hisoka, an orphan adopted by Yukitaka, being assigned undercover at the same all-girls academy. Hisoka secretly serves as Orihime's bodyguard, performing both public and covert protection duties.

Physically, Orihime stands 164 cm tall with a slim build and pale complexion. She has blond hair typically styled in a waist-length side tail featuring V-shaped bangs, and brown eyes. Her attire consistently reflects her student role: a school uniform, loafers, and a hair tie. Her personality is refined, consistent with her upbringing in a wealthy, influential family, and she holds a position as a popular figure among her peers at the academy.

Her narrative centers on the dynamic created by Hisoka's undercover presence at Saint Ceral Girls' Academy, a turning point for both characters as Hisoka navigates school life while maintaining protective duties. Orihime interacts directly with Hisoka and other students, such as the academically accomplished Masaki Mirei. These interactions occur within her daily academy life, where she balances her social role with the underlying reality of her need for protection. The unfolding story involves revelations about identities and secrets tied to her situation.