Sakurasaku

The story is about a gentle and easygoing girl who likes reading. One day, a piece of paper comes out of a book at the library. It is a beautiful letter called "Sakurasako". That's when she starts a correspondence with a complete stranger. But who is he?
~~ Adapted from the novel “Sakurasaku” (サクラ咲く) by Tsujimura Sugi.