Kazuki is the eldest of the Mikadono Sisters. She possesses outstanding acting and singing skills, capable of flawlessly portraying roles that are deemed impossible by others, and she also has incredible ticket-selling power, as every performance she appears in is sold out. Despite being part of an all-female theater group, she specializes in male roles due to her deep voice and polished appearance, which makes her extremely popular among women as a prince figure. However, she internally feels a compulsion to lead and help others without relying on anyone, in order to live up to her image as everyone's prince. Despite her perfectionist image, she surprisingly has a picky eating habit.