One day, Naho Takamiya receives a letter written to herself from ten years in the future. As Naho reads on, the letter recites the exact events of the day, including the transfer of a new student into her class named Kakeru Naruse. The Naho from ten years later repeatedly states that she has many regrets, and she wants to fix these by making sure the Naho from the past can make the right decisions, especially regarding Kakeru. What's more shocking is that she discovers that ten years later, Kakeru will no longer be with them. Future Naho asks her to watch over him closely.
If your looking for something to make your faith in people return, this is an anime I would recommend. The reason I scored it so high is because I could not take of my eyes from it, there is always something that pops up emotionally in this anime that you simply must see resolved. I would have given it a 10 if it was not so short, I wanted to see more of what would occur after the final episode. This anime is surprisingly dark and can throw your suspense into overdrive when you don't know what may happen to certain characters in this anime, so don't expect anything too cutesy, not that there is no kawaii in this anime! All in all, would recommend for those looking for a binge anime.