A young female clerk in charge of the register. She is characterized by drooping eyes and a beauty mark beneath one eye. Because Mii-chan took a liking to the cute design of her uniform and threw a tantrum at the manager saying she wanted to wear it, Mii-chan ended up joining the staff. Since Mii-chan started, the clerk has suffered through various unfortunate situations.

Miiko Nakamura. From Miyagi Prefecture, 148cm tall. First person/Nickname: Mii-chan. She has a petite, cute appearance with wide eyes and looks much younger than her actual age. Since childhood, she has had short brown hair and pink eyes. She is honest to a fault, for better or worse, and has no hidden side. Because she is a middle school graduate who cannot read simple kanji and carelessly reveals her real name, address, and personal information about herself and her colleagues in front of customers, those around her label her as "pitiful." According to Momoka, she couldn't even apply for high school because she can't read or write. While friendly, she is proud and is trying to accept the possibility of her own intellectual disability. Despite her lack of intellect, she is highly sensitive and keenly perceives the emotions of others. She understands and feels her alienation from the local community since childhood, her position at home, her grandmother's lack of affection and sense of obligation, the fact that her father will never return home, and her mother's indifference. Consequently, she is starved for affection and quickly becomes attached to anyone who is kind to her, such as her third-grade teacher Suzaki, her first love Sato, or Mr. Yamada. However, she lacks respect or etiquette toward these people and becomes overbearing, which ultimately results in her biting the hand that feeds her and destroying the relationship. Having been treated with indifference and caprice by her family without discipline, and having received no education due to years of truancy, her manners and ethics are extremely precarious; she believes that "it's okay to do bad things if you have no money."