**Miya** is a college-aged cat beastkin woman of average stature, distinguished by her brownish-orange hair, yellow eyes, cat ears, and tail. Her speech frequently incorporates cat-like expressions, ending sentences with 'nya' and weaving in cat-related puns. She holds Rank-B status in the Adventurers' Guild and operates within a party alongside Cilia, Mizelia, and Welanna.

Miya's background involves a residential crisis where her home, adjacent to a garbage dump, suffered a structural collapse, flooding her basement with refuse. The overwhelming stench and continuous waste influx deterred potential helpers despite increased rewards. Ryoma and his slimes eventually intervened, clearing the garbage, sterilizing the basement, and reinforcing the dividing wall. Deeply moved by this aid, Miya expressed tearful gratitude and significantly augmented Ryoma's compensation.

Later, Miya supported Ryoma during the public toilet sanitation project by volunteering to secure the perimeter against intrusions. She also participated in the initial group for the monster subjugation mission in abandoned mines alongside Welanna, Cilia, Mizelia, Jeff, and Ryoma. Following the goblin encounter, her involvement diverged between adaptations: occurring offscreen in the source material while featuring grouped defense in the anime. Post-goblin conflict, she was reassigned to safeguard lower-ranked adventurers.

Her capabilities stem from her beastkin physiology and experience, granting heightened reflexes, acute auditory and olfactory senses, and limited proficiency in attack magic. Notably, she developed Disease Resistance at level 4, a direct result of enduring five years amidst hazardous waste conditions near her home.