A refined yet sharp-tongued girl, Tsumugi speaks very politely and is interested in traditional Japanese things but does not hesitate to speak her mind. Despite her stoic demeanor, she is easily shaken or flustered. She leaps to negative conclusions quite easily, which can be a problem, such as when she thought she, Mizuki, and [Shiho](https://anilist.co/character/88502/Shiho-Kitazawa) were cast as androids in the [Melty Fantasia](https://www.project-imas.com/wiki/Melty_Fantasia) event due to the Producer seeing them as stiff and unfeeling (which ended up being untrue, but it frustrated Shiho at the time). However, her misconceptions can usually be cleared up. Tsumugi was scouted by the Producer when he visited the kimono shop her parents run to return some clothes rented for a performance. While not initially outwardly interested, she later showed up at an audition and revealed that she once wanted to be an idol when she was younger.
