Himari Uehara is a normal high school girl attending Garupa Private Academy.
At this academy, there is a cherry blossom tree which blooms once every ten years.
They say that if you wish for happiness together with someone special
to you under that tree, your wish will surely come true.
Himari searches for her destined partner at this academy.
"This is a very important choice to me.
This moment comes only once in ten years.
The one I want to spend it with is..."