Mieru Ariake is a second-year student at Takafuji Academy and a classmate of Yūki Ōjima. She possesses pink hair, brown eyes, stands 1.59 meters tall, and weighs 46 kilograms, with measurements of 78-57-80. Ariake serves as the president of FNOS (腐の巣 Fu no Su), an association within the school known as a "perverted" club.