Aoi Minase serves as a sub-manager and waitress at the Pia Carrot restaurant chain, specifically the "2nd" location in the original game and OVA. She is 23 years old, stands 164 cm tall, has blue hair, and blue or green eyes. Her physical characteristics include a visible mole or birthmark marking her face, and she is typically depicted wearing earrings and carrying a bag.

Her personality centers on enjoying beer and frequenting pachinko parlors. Her overt enthusiasm for these activities positions her as a negative influence on younger coworkers. She harbors a romantic interest in the restaurant's boss. Her heavy drinking, consistent across portrayals, defines her as the "token alcoholic" in the original *Welcome to Pia Carrot 2* OVA.

Within the franchise's continuity, her role evolves. In *Welcome to Pia Carrot 2.2*, set four months after *Welcome to Pia Carrot 2*, she holds the position of chief waitress at the "3rd" branch, indicating progression in her responsibilities. Her relationship with Ryoko Futaba, manager of the "2nd" store, is noted as a friendship in the original game material.