Yui Kirihara, age 29, presides over Kiri Pro, a talent agency navigating constant chaos from employees Komugi Nakahara, Megumi Akiba, Runa Tokisaka, and Asuka Sakurai. Her leadership demands maintaining operations amid disruptive antics that trigger visible stress and frustration. Previously a well-known idol, she shifted careers after a personal crisis: planning a public engagement announcement with Mr. Richard, a rival agency president, only for him to declare love for her manager instead, causing profound humiliation and heartbreak. This betrayal drove her exit from idol work and fueled Kiri Pro's founding.

Yui frequently reprimands Komugi for unprofessional conduct, particularly unexplained absences during magical girl duties. Despite her stern approach, underlying concern surfaces occasionally, such as when her manager Shiro Mibu defends Komugi from severe criticism, revealing a dynamic where discipline intertwines with loyalty. A special episode delves into her past, contextualizing her career shift and emotional resilience following the betrayal.