水元 七海

A second-year student who is the president of the string orchestra club at the academy, and also Mimako's childhood friend. She is aiming to become a professional violinist by participating in the national tournament at the upcoming contest. Nanami always looks calm, refined and mature, but in reality she is slightly bad at dealing with strangers, and tends to have a shy personality as well.

Her violin performances are always praised for their exquisite and powerful nature, and Nanami always shows more emotion during these performances. According to Aina, "Nanami uses her violin more for speaking than her mouth". She is admired by a lot of people and many of them see her as a genius because Nanami handles all the difficult songs with ease, but in reality she works her hardest to attain the results she desires.

Because her parents are working abroad, she lives together with her cousin. Her parents haven't approved her dream of becoming a professional violinist yet, but they will if she manages to participate in the national tournament.