[From Ivyscan]:

Do you know that one single moment that seems so insignificant, can mean so much to another?

Like everyone else, Koota never really notices Mai and has always thought that she is just an introverted and cold person. But he soon learns that there is more to see than what meets the eyes.

At the age of sixteen, you've lived for about 6000 days... for how many of them were you truly honest? Tomoko regrets that when she was a teen, she didn't confess to the boy she loved and he was taken by another girl. When she gets hit by a car, she gets the chance to watch her past unfold again, and maybe even change it.