This is a piano sheet music of 'Left-Right Confusion' by Yorushika from movie 'Even If This Love Disappears from the World Tonight' OST.
It is a song about the affectionate love story of a woman suffering from antecedent amnesia, whose memories are reset in the morning after sleeping, and an ordinary man living a dull life.
I think it's a song that expresses the feeling of the title and lyrics with unique rhythm and melody.
Hope you enjoy it.
Thank you!