On a rainy day, Natsume meets a young girl youkai.  Her name isn't in the book of friends, but she wants his help anyway: she wants him to find a man she met once.  The man couldn't see Youkai normally, but a mischievous trick of the weather let him see her for just one day.  For the next fifty years she visited him, hoping he'd see her one more time, but he never did.  Now he's vanished. Can Natsume find him for her?
My aunt tells me that when she 
was little, you lent her this.
Mi tía me dijo que le prestó
esta toalla cuando era pequeña.
Minha tia disse que você lhe
emprestou isto quando era pequena.