Saori Shikikagami, the older sister of Sanae Shikikagami, originates from a wealthy family. She initially attended Hakureiryō Academy as an upper-ed student until her family's financial difficulties forced her transfer. Saori joined the servant-ed class alongside her sister to train as a butler, lacking any prior experience in housework or serving others.

She habitually removes her clothing without regard for surroundings, appropriateness, or observers, frequently resulting in unintended nudity. This behavior contributes to a perception of her as ditzy, distinct from her sister's clumsiness.

Driven to become a skilled butler, Saori aims to prove her independence and capability to her family and peers, countering expectations stemming from her privileged background. Her journey involves facing significant challenges and setbacks in butler training, testing her resolve.

Saori develops feelings for the main protagonist, Akiharu Hino. She struggles to express these emotions while maintaining her image as a popular and elite student. Her interactions with him add complexity to her character.

Personality assessments indicate traits of confidence, practicality, and a results-oriented mindset. Saori exhibits assertiveness and direct communication, often taking leadership roles such as organizing events. Enneagram analysis aligns her with Type 1, reflecting a strong sense of responsibility, adherence to rules, perfectionism, and a desire for improvement, though this can manifest as rigidity or harsh judgment.