Saki Arima

Оригінальне ім’я: 有馬早希

Saki is Kousei's strict mother who demands Kousei play the piano to perfection, often beating him up for small mistakes. While she did not plan to make Kousei a pianist at first, her realization of Kousei's talents and her own illness made her decide to give Kousei a strict foundation in piano in order to be able to find his own style, and a living, afterwards.