Mihiro Miyase is a main character in Wagamama High Spec and a first-year student at Ōsui Academy. She is the best friend of Toa Narumi and serves as the secretary of the student council, having been scouted for the position after achieving excellent grades on the entrance exam. Her family runs a long-standing yoshoku restaurant, and she has inherited exceptional cooking talent from that background, making her highly skilled in the kitchen. Mihiro is described as naturally talented and capable of doing almost anything, yet she rarely puts in effort unless she feels a genuine need or motivation to do so. This attitude gives her a devilish and mischievous streak, and she often enjoys teasing Kōki Narumi, the male protagonist. Despite her playful nature, she is not entirely comfortable around animals, an ironic detail considering that cats and dogs tend to gravitate toward her and frequently follow her around. Her role in the story begins when she strongly opposes Kōki's joining the student council, but she eventually becomes one of the four heroines working alongside him, Toa, Ashe Rufflette Sakuragi, and Kaoruko Rokuonji. Her relationship with Toa is particularly close, built on a foundation of deep friendship, while her interactions with Kōki evolve from initial friction into a more complex bond. Mihiro's development stems from her gradual willingness to engage seriously with her responsibilities and relationships, moving beyond her default laziness. Her standout abilities include her superior culinary skills, her academic excellence, and a natural aptitude that allows her to excel in various tasks when she chooses to apply herself.