![large.jpg](https://media.kitsu.io/anime/poster_images/11844/large.jpg)
Naho is a kind, shy girl that has a crush on her classmate Kakeru. She receives a letter from her future self telling her that to watch over Kakeru closely as he is going to die. To avoid a lifetime of regret, Naho has to change her reserved disposition—but this is much easier said than done.