Inui serves as a temporary administrative employee at Carrier Man Trading Co., Ltd. during Season 3, her design inspired by a Borzoi dog: slender, tall, with predominantly white fur and cream-tinted wavy ears. Her professional attire pairs a navy blue vest-and-skirt set with a crisp white shirt and brown shoes, while her casual wardrobe features a faded pink long-sleeve top, coral button-up skirt, brown ankle-length coat, black boots, grey mittens, and a scarf.

Reserved yet observant, she maintains a quiet presence at work but confronts personal topics candidly, especially her attraction to Haida. Their connection begins through mutual music preferences, evolving during record-store encounters and punk-bar outings. When Inui discerns Haida’s lingering attachment to another coworker, she calmly severs their bond, prioritizing self-respect.

Post-contract dismissal leads to a chance reunion at the record store, where she critiques Haida’s unawareness of her departure, urging him to apply this lesson to his current relationship. She acknowledges his improved fashion choice, contrasting his new coat with the old.

Her narrative underscores pragmatic emotional growth, balancing unreciprocated affection with dignified boundaries. A fleeting Season 4 cameo revisits her reflective, conflict-free perspective on past events, cementing her composed closure.