Deemo Movie: Sakura no Oto – Anata no Kanadeta Oto ga, Ima mo Hibiku

Deemo is a lonely individual who lives in solitude, playing the piano in a castle. One day, a girl who has lost her memory falls from the sky. Wanting to help her recover her memories and return to her world, Deemo discovers that a tree kept atop the piano will grow whenever the piano is played.