Kinue Amano is a woman in her late twenties whose life is unexpectedly transformed by a sudden and unwelcome career change. At the beginning of her story, she is a successful and comfortable sales clerk in the futon section of the Echizenya department store. She takes great pride in her work, and her practical, straightforward approach has made her a top employee in that department. However, her appearance and personal style reflect her focus on utility over aesthetics. She dresses plainly, wears simple glasses, and has no interest in fashion, makeup, or glamour. Her world is turned upside down when she is abruptly transferred to the high-end women's clothing department, an environment that is entirely alien to her and filled with elite, fashion-conscious colleagues.

Initially, Kinue is an outsider who struggles to understand the value of her new role. She finds it difficult to sell clothing because she cannot grasp why a customer would prioritize style over the tangible comfort and practicality of a futon. She is openly mocked and dismissed by her new coworkers, particularly by the demanding and impeccably stylish director of the department, Miki Jinbo, who sees her as hopelessly out of place. Despite the harsh reception, Kinue is defined by her tenacity, determination, and strong work ethic. Rather than giving in to despair or retreating, she makes a conscious decision to adapt and learn. Her core personality, which is serious, reserved, and incredibly hardworking, becomes the engine for her dramatic evolution.

As Kinue immerses herself in the fast-paced world of retail fashion, she discovers a hidden passion. She begins to understand that clothing can be a form of personal expression and a source of confidence, not just a frivolous expense. With the grudging help of a colleague named Ryo Sasaki and the unconventional mentorship of the eccentric buyer Yusaku Tabuchi, Kinue starts to develop her own fashion sense and professional skills. Her ambition and newfound knowledge lead to a promotion, becoming an assistant to Tabuchi in the buyer's office, a position of significant responsibility. Her role in the story is that of a woman who must reconstruct her professional identity from the ground up, challenging her own preconceived notions about herself in the process.

This journey comes with significant personal costs. Her most important relationship is with her long-term boyfriend, Tatsuya Yamauchi, whom she has dated since their university days. As Kinue becomes more devoted to her demanding career, the balance of their relationship shifts. While she finds fulfillment and a sense of purpose in her work, Tatsuya wishes to return to his family's home in the countryside, a move that would force Kinue to abandon the new life she has built. Ultimately, her growth as an independent woman leads her to make the difficult choice to prioritize her career over her romantic relationship, a decision that solidifies her transformation.

The core of Kinue's development is her journey from a plain, insecure, and pragmatic worker into a confident, ambitious, and stylish professional. She learns to see herself as someone capable of thriving in a competitive and image-driven industry. Her notable abilities include her incredible persistence, her capacity for hard work, and her ability to apply lessons from her past success in the futon department to her new challenges. By the end of her arc, she is no longer the woman who was reluctant to change; instead, she has become a strong-willed individual who has found her true calling and the self-love required to pursue it, even when it means walking a path alone.