It's a oneshot with an overall solemn feel to it. The protagonist is a girl. She meets a boy who can see things in the future (I think he warned her to avoid walking near the park one day because there would be an accident). He's an outcast because of his ability, but the girl says she'll stay by his side. However, when the boy tells her the day the world will end, she starts to drift away from him. He moves away, she regrets it, and from then on, she lives her life to the fullest. On the day the boy spoke of,
Spoiler (highlight to view)
the world doesn't end - the boy dies.
I hope for replies! Thanks! ^^;