Shigatsu wa Kimi no Uso (ep.18 Arima n Nagi performance)

Anime : Shigatsu wa Kimi no Uso (episode 18)
Composed by : Tchaikovsky
'Waltz' from The Sleeping Beauty (Piano Duet Version)
Nagi is Kousei Arima's first apprentice and student. She is a first year student, studying a music course in Kurumigaoka Junior High School. She initially introduced herself as Hiroko Seto's fan, but her ulterior motives were revealed later on.