Nanami is secretly in love with her upperclassmen Higashi. Upon a rainy graduation from her middle school, she resolves to confess to him, but instead she merely trades his green umbrella against her own. Afterwards they become friends, but not quite a couple yet. To her chagrin Nanami didn't manage to get into the same school as Higashi, but she still hopes that their relathionship might deepen. Things complicate themselves when a classmate of Nanami tries to win her over and Higashi's former girlfriend shows up again.

Mai, a quiet girl who is thought of as gloomy by her classmates, does kind deeds in secret. Narumi is surprised to find this out, and even more surprised when he realizes the impression he made on her for his own small deeds. Includes the one-shot: 1/6000 Honesty 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.

Natsu is a woman who wishes for a partner for an "ideal marriage", while she actually had found him years ago in form of the senior in schooltimes. Their ways had parted, but are finding together again. Includes the 3 chapter short story "Birthday" in volume 2. (included in chapter count)