Musicus-ムジクス-

Danda Kyouko goes to a small piano school. That school is at Hirano Kanade's own house, it's a small cozy school with only one old upright piano. That day something was different however. Unfamiliar piano music was echoing from the classroom... Kyouko opened the door although with a strange feeling. The thing that was in front of her was...?

(Translated from the official site)